Rainbow Riches Free Spins is a 5-reel, 3-row slot game developed by Scientific Games and provided by Barcrest, powered by SG Interactive. Released in 2016, this game features a vibrant Irish folklore theme centred around rainbows and the legendary pot of gold. The game showcases a purple gradient sky background with a prominent rainbow arc, creating an immersive visual experience enhanced by silhouettes of trees at the bottom and multiple rainbow arcs that create exceptional depth.
The colour scheme emphasises purple and gold as primary colours, complemented by the full rainbow spectrum and green accents that reinforce the Irish theme. This 5-reel configuration displays 3 symbols per reel across 10 fixed paylines, all of which remain active at every stake level. The theoretical Return to Player (RTP) stands at 95.17%, offering players a fair gaming experience with a maximum potential win of £250,000.00 per game.
Stakes range from a minimum of £0.10 to a maximum of £500.00 per spin, with a default stake of £2.00. The game employs a fixed payline configuration where all 10 lines are perpetually active, simplifying gameplay and ensuring consistent betting mechanics across all stake levels. The maximum win potential may vary depending on the selected stake level, as not all maximum wins are reachable from every stake configuration.
The game's loading screen immediately establishes the Irish folklore theme with its striking visual presentation. The title "Rainbow Riches Free Spins" appears in large golden letters with a distinctive red outline, commanding attention against the purple sky backdrop. A prominent rainbow arc dominates the background, establishing the game's central visual motif from the very first moment.
A loading bar positioned at the bottom centre features a blue progress indicator against a black background container, providing clear feedback during the game initialisation process. Branding elements are strategically positioned: the "Powered by SG Interactive" logo sits in the bottom left corner, whilst the Barcrest logo, presented in a blue oval, occupies the bottom right position. This professional presentation sets expectations for the quality gaming experience that follows.
The main game interface employs a sophisticated three-panel layout design. The central focus is the 5x3 reel grid, framed by an ornate golden Celtic-style border that reinforces the Irish theme whilst providing clear visual boundaries for the play area. Behind the symbols, a gray gradient background ensures optimal symbol visibility and readability.
The left panel houses comprehensive game controls and stake settings, allowing players easy access to bet adjustment and game information. The right panel contains primary action buttons for spinning and additional features. The bottom bar displays crucial information including balance and win totals, ensuring players maintain constant awareness of their gaming session status.
The reel area itself features subtle vertical lines between the five reels, creating clear visual separation whilst maintaining the cohesive aesthetic. This thoughtful design ensures that players can easily track symbols across the 3x5 grid whilst enjoying the immersive Irish folklore atmosphere created by the purple, gold, and rainbow colour palette.
The premium symbol in Rainbow Riches Free Spins is the game's logo itself, featuring rainbow-coloured text prominently displayed on a green background. This high-value symbol delivers the most substantial payouts in the game:
As the highest paying standard symbol, landing five Rainbow Riches Logo symbols across an active payline at maximum stake can contribute significantly towards the game's £250,000 maximum win potential. The distinctive design ensures this symbol is immediately recognisable during gameplay, with its vibrant rainbow text creating visual excitement when it appears on the reels.
The King playing card symbol appears in blue with an elegant decorative font that complements the game's overall aesthetic. This medium-value symbol offers substantial returns:
The blue colour provides strong contrast against the gray reel background, ensuring clear visibility. The decorative font styling elevates this traditional playing card symbol beyond standard representations, integrating it seamlessly into the Irish folklore theme.
Presented in red with matching decorative font styling, the Ace symbol ranks as the second-highest paying symbol in the game after the Rainbow Riches Logo:
The red colouration makes the Ace highly visible during gameplay, and its superior payout structure compared to other playing card symbols creates additional excitement when multiple Aces land on active paylines. The decorative font treatment ensures visual consistency with other card symbols whilst maintaining individual character distinction.
The Jack symbol appears in golden yellow with decorative font styling, offering entry-level winning combinations:
Despite being a lower-value symbol, the Jack's golden yellow colour creates visual appeal and ties into the game's gold and treasure theme. The 100x payout for five of a kind still represents a significant win, particularly at higher stake levels.
Rendered in purple with decorative font, the Ten symbol matches the game's primary background colour scheme:
The purple colouration creates thematic cohesion with the game's overall purple sky background whilst maintaining sufficient contrast for clear symbol identification. This symbol pays identically to the Jack, providing multiple pathways to similar win values.
The Queen playing card symbol appears in green, directly referencing the Irish theme through its colour selection:
The green decorative font creates a strong visual link to Irish folklore and the Emerald Isle, whilst the identical payout structure to the Jack and Ten ensures balanced low-value symbol returns across the paytable.
The Wild symbol in Rainbow Riches Free Spins features a leprechaun character wearing the iconic green hat associated with Irish folklore. This special symbol serves a crucial function in the game's winning mechanics by substituting for all symbols except the Bonus/Free Spins symbol.
The Wild can appear on any of the five reels during standard base game play, creating additional winning opportunities by completing paylines that would otherwise fall short of a winning combination. When a Wild symbol lands in a position that allows it to substitute and create a winning combination, it automatically fulfils this function, with the game calculating and awarding the highest possible win for that payline.
The leprechaun character design is immediately recognisable, featuring traditional Irish folkloric imagery that aligns perfectly with the game's rainbow and pot of gold theme. The distinctive green hat ensures players can instantly identify Wild symbols as they land, whilst the character's visual appeal adds personality to the gameplay experience.
During standard gameplay, Wilds function exclusively as substitutes. However, the bonus mechanic introduces an additional layer of Wild functionality, as Bonus symbols themselves act as Wilds during the Free Spins feature, creating enhanced winning potential throughout the bonus rounds.
The Bonus symbol appears as a circular badge prominently displaying "FREE SPINS" text. This special symbol is the key to unlocking the game's primary feature and appears exclusively on reels 1, 3, and 5 during base game play. The restricted reel positioning creates a specific triggering mechanism that requires strategic alignment across non-adjacent reels.
To trigger the Free Spins feature, players must land exactly 3 Bonus symbols simultaneously, with one appearing on each of reels 1, 3, and 5 within a single spin. The non-consecutive reel requirement adds anticipation to gameplay, as players watch reels 1 and 3 land Bonus symbols before the final reel 5 determines whether the feature triggers.
The circular badge design with clear "FREE SPINS" text ensures unmistakable identification. The symbol's visual prominence means players can immediately recognise when they're one symbol away from triggering the feature, building excitement during base game play.
Uniquely, during the Free Spins feature itself, Bonus symbols take on dual functionality. They continue to serve their primary purpose of potentially retriggering the feature when 3 land again on reels 1, 3, and 5, but they also act as Wild symbols. This dual role significantly enhances winning potential during free spins, as Bonus symbols can substitute for standard symbols whilst simultaneously working towards feature retriggering.
The stacking mechanic applied to Bonus symbols on reel 1 during the free spins feature further amplifies their impact. When Bonus symbols stack vertically on reel 1, they increase the probability of achieving the 3-symbol trigger requirement whilst also providing multiple Wild positions for potential winning combinations.
The Free Spins feature activates when 3 Bonus symbols land simultaneously on reels 1, 3, and 5 during a base game spin. This specific positioning requirement creates strategic anticipation, as players need symbols on non-consecutive reels to align within a single spin outcome. The restriction to these three reels means Bonus symbols never appear on reels 2 or 4 during base gameplay, focusing the triggering mechanism on the outside and centre reels.
Upon successful triggering, gameplay transitions from the main reels to a selection screen where players choose their preferred free spins configuration. This choice element introduces player agency into the bonus feature, allowing selection based on personal preference for spin quantity versus potential symbol arrangements.
The selection screen presents three distinct configurations, each offering different combinations of free spins quantity and Bonus symbol arrangements. The screen displays the game title "Rainbow Riches Free Spins" with a "Free Spins" subtitle, accompanied by an instructional message: "BONUS SYMBOL ON REELS 1, 3 AND 5 INITIATES THE FREE SPIN BONUS".
The first pattern awards 10 free spins and displays 3 stacked Bonus symbols as its visual representation. This configuration provides the minimum number of spins but may offer specific symbol distribution advantages on the alternative reel set used during the feature. The 3 stacked symbols shown in the selection screen preview the stacking mechanic that can occur on reel 1 during the actual free spins gameplay.
The second pattern increases the award to 15 free spins, showing 5 Bonus symbols arranged in a different pattern from the first configuration. This middle-ground option balances spin quantity with the specific Bonus symbol arrangement, potentially offering different mathematical probabilities for retriggering and winning combinations compared to the other configurations.
The third pattern provides the maximum initial award of 20 free spins, displaying 6 Bonus symbols in yet another distinct arrangement. This configuration maximises the number of guaranteed spins, providing extended gameplay within the feature before any potential retriggering occurs. The 6 Bonus symbols shown suggest enhanced presence of these dual-function Wild/Bonus symbols on the alternative reel set.
Once the player selects their preferred configuration by clicking the green checkmark confirmation button positioned at the bottom centre of the selection screen, the free spins feature commences immediately with the chosen number of spins and corresponding reel configuration.
During the Free Spins feature, gameplay switches from the base game reels to an alternative reel set specifically optimised for bonus play. This alternative configuration maintains identical visual appearance to ensure seamless player experience, but operates under different symbol distribution and probability mathematics.
The alternative reels are designed to increase the frequency of winning combinations compared to base game probability, enhancing the overall value and excitement of the free spins feature. Whilst maintaining the same 5x3 grid structure and identical symbol set, the altered distribution means certain symbols may appear more or less frequently than in base gameplay.
This mathematical adjustment is a standard industry practice that ensures bonus features deliver enhanced entertainment value and winning potential, justifying the requirement to trigger the feature and creating meaningful differentiation between base game and bonus game experiences.
A defining mechanic of the Free Spins feature is the ability for Bonus symbols to appear stacked on reel 1. Stacking occurs when multiple identical symbols appear in vertically adjacent positions, effectively covering 2 or all 3 positions on that specific reel.
When Bonus symbols stack on reel 1, they create multiple instances of this symbol in a single spin outcome. Given that Bonus symbols act as Wilds during the feature, stacked Bonus symbols on reel 1 provide multiple Wild positions that can contribute to numerous paylines simultaneously, substantially increasing winning potential for that particular spin.
Additionally, stacked Bonus symbols on reel 1 dramatically increase the probability of achieving the 3-symbol trigger requirement for feature retriggering. With multiple Bonus positions on reel 1, only single Bonus symbols are needed on reels 3 and 5 to activate additional free spins, making retriggering significantly more accessible than the base game triggering requirement.
Throughout the Free Spins feature, Bonus symbols serve dual purposes simultaneously. They continue their primary function as feature-triggering symbols, meaning 3 Bonus symbols on reels 1, 3, and 5 will award additional free spins. Concurrently, they also function as Wild symbols, substituting for all standard symbols to create and enhance winning combinations.
This dual functionality creates complex and exciting gameplay dynamics. A single spin can simultaneously progress towards retriggering the feature whilst also creating multiple winning paylines through Wild substitution. The Bonus symbol's appearance becomes doubly valuable, contributing to both immediate wins through Wild functionality and potential spin extension through retrigger mechanics.
The Wild substitution applies to all standard symbols including the Rainbow Riches Logo, Ace, King, Queen, Jack, and Ten. Bonus symbols cannot substitute for the standard Leprechaun Wild symbol, though this is functionally irrelevant as both symbols already serve Wild purposes during the feature.
During active free spins, landing 3 additional Bonus symbols on reels 1, 3, and 5 within a single spin activates the retriggering mechanism. When this occurs, extra free spins are awarded and added directly to the remaining spin count, extending the feature without returning to the selection screen.
Retriggered spins use the same configuration originally selected by the player. If the player initially chose the 20-spin configuration, each retrigger awards an additional 20 spins. This consistency ensures players understand exactly how many spins each retrigger provides based on their initial selection.
There is no theoretical limit to how many times the feature can retrigger, provided the total cumulative spin count does not exceed 999 spins. This cap represents the absolute maximum, creating scenarios where extremely fortunate players could experience hundreds of consecutive free spins through multiple successful retriggers.
The free spins counter displays the current remaining spins, updating after each spin and increasing when retriggering occurs. This transparent presentation ensures players always know their current position within the feature and can anticipate how many guaranteed spins remain.
All free spins are played at the identical bet level that triggered the original feature. If a player triggered free spins whilst betting £2.00 per spin, every free spin including retriggered spins will also be played at £2.00. This locked bet level ensures players cannot modify their stake during the feature, maintaining consistent risk and reward throughout.
This mechanism protects both players and the game's mathematical integrity. Players cannot reduce stakes during a bonus feature to minimise loss during a poor feature performance, nor can they increase stakes to maximise returns during a strong feature run. The feature plays out entirely at the triggering stake, ensuring fair and predictable gameplay.
The Free Spins feature concludes under two specific conditions. The primary termination occurs when the remaining free spins count reaches zero. After the final spin completes and any winning combinations are paid, gameplay returns to the base game at the player's selected stake level.
The secondary termination condition activates if the cumulative total of free spins reaches 999. This absolute maximum ensures the feature cannot continue indefinitely, creating a theoretical upper boundary for extended bonus sessions. If a player reaches 998 total spins and then retriggers the feature for an additional 20 spins, the feature would terminate at 999 spins rather than awarding the full 20-spin retrigger.
Upon feature conclusion, the total winnings accumulated throughout all free spins are added to the player's balance. The game then returns to base gameplay, allowing the player to continue spinning or adjust their stake as desired. If the feature was particularly successful, players may also access the Gamble feature to potentially double their accumulated free spins winnings.
Rainbow Riches Free Spins employs a fixed 10-payline structure where all lines remain perpetually active at every stake level. Players cannot deactivate individual paylines, ensuring consistent gameplay mechanics and eliminating the complexity of line selection. The total stake is automatically divided across all 10 paylines, with the stake per line displayed clearly in the control panel.
Each payline follows a specific pattern across the 5x3 grid, with winning symbols required to appear consecutively starting from the leftmost reel (reel 1). Paylines are visualised using red squares for active positions against a golden grid representing the 5x3 symbol layout, with inactive positions shown as black squares.
The first payline creates a straight horizontal line across the middle row of the 5x3 grid. This line passes through positions [1,2], [2,2], [3,2], [4,2], [5,2], forming a direct path through the centre of each reel. As the most visually obvious payline, this middle row straight pattern is typically the first winning line players recognise. Winning combinations require matching symbols to appear in consecutive positions starting from reel 1, proceeding right across the middle row.
The second payline follows a straight horizontal path along the top row, passing through positions [1,1], [2,1], [3,1], [4,1], [5,1]. This uppermost row pattern creates winning combinations from symbols aligned along the top edge of the reel set. Like all paylines, wins must start from the leftmost position [1,1] and continue consecutively rightward along the top row.
The third payline completes the horizontal trio by following the bottom row through positions [1,3], [2,3], [3,3], [4,3], [5,3]. This lowermost row pattern mirrors the top row configuration, creating winning potential from symbols landing along the bottom edge of the visible grid. Consecutive matching symbols must begin from position [1,3] and extend rightward along the bottom row.
Payline 4 introduces diagonal movement, forming a V-shape that descends from the top-left corner. The pattern flows through positions [1,1], [2,2], [3,3], [4,2], [5,1], starting at the top of reel 1, dropping to the middle of reel 2, reaching the bottom at reel 3 (the apex of the V), rising back to middle at reel 4, and concluding at the top of reel 5. This creates a distinctive valley shape, with winning symbols following the descending and ascending diagonal path.
Payline 5 creates the inverse V-shape, ascending from bottom-left through positions [1,3], [2,2], [3,1], [4,2], [5,3]. Beginning at the bottom of reel 1, the line rises to middle at reel 2, peaks at the top of reel 3, descends to middle at reel 4, and finishes at the bottom of reel 5. This inverted valley or peak shape provides winning potential for symbols following this specific ascending-descending diagonal pattern.
The sixth payline creates a zigzag pattern initiating from the middle position, weaving through [1,2], [2,1], [3,2], [4,3], [5,2]. Starting at middle on reel 1, the line jumps to top at reel 2, returns to middle at reel 3, drops to bottom at reel 4, and concludes at middle on reel 5. This creates a balanced zigzag with equal upward and downward movement from the central starting point.
Payline 7 establishes a different zigzag initiating from the top row, following positions [1,1], [2,3], [3,1], [4,3], [5,1]. Beginning at top on reel 1, the line makes a dramatic jump to bottom at reel 2, returns to top at reel 3, drops to bottom again at reel 4, and finishes at top on reel 5. This creates pronounced vertical movement between alternating reels, forming an aggressive zigzag pattern.
The eighth payline flows in a wave formation through positions [1,2], [2,3], [3,2], [4,1], [5,2]. Starting at middle on reel 1, the wave rises to bottom at reel 2, returns to middle at reel 3, peaks at top on reel 4, and settles back to middle at reel 5. This creates a smooth undulating pattern with gentle rises and falls.
Payline 9 forms a distinctive M-shape traversing positions [1,3], [2,1], [3,2], [4,1], [5,3]. Beginning at bottom on reel 1, the line rises sharply to top at reel 2, descends to middle at reel 3 (forming the centre valley of the M), rises again to top at reel 4, and finishes at bottom on reel 5. This creates the classic M letter shape with its characteristic dual peaks.
The tenth and final payline creates a W-shape through positions [1,1], [2,3], [3,2], [4,3], [5,1]. Starting at top on reel 1, the line drops to bottom at reel 2, rises to middle at reel 3 (the centre peak of the W), descends to bottom again at reel 4, and concludes at top on reel 5. This mirrors the M-shape but inverted, creating the W letter configuration with its dual valleys.
The game employs a clear visual system for payline display. Active payline positions are marked with red squares, whilst inactive positions appear as black squares against the golden 5x3 grid background. This colour-coded system allows players to easily understand each payline's path across the reels, facilitating quick recognition of winning patterns during gameplay.
When a winning combination lands, the relevant payline illuminates with animation, highlighting the specific path that created the win. Winning symbols are emphasised with bright borders and animations, ensuring players immediately understand which symbols contributed to the win and which payline pattern triggered the payout.
All winning combinations in Rainbow Riches Free Spins must begin from the leftmost reel (reel 1) and extend rightward along an active payline. Symbols appearing on reels 2, 3, 4, or 5 without corresponding matches starting from reel 1 do not constitute winning combinations, regardless of how many matching symbols appear.
This left-to-right evaluation is fundamental to slot game mechanics and ensures consistent, predictable win assessment. For example, if four matching symbols appear on reels 2, 3, 4, and 5, this creates no win despite having four consecutive matches, because the sequence does not originate from reel 1.
Winning symbols must appear on consecutive reels without gaps. A valid winning combination could be three symbols on reels 1, 2, and 3, or four symbols on reels 1, 2, 3, and 4, but not three symbols on reels 1, 2, and 4 with a gap at reel 3. The consecutive requirement ensures clarity in win assessment and maintains standard industry mechanics.
Wild symbols can bridge gaps in consecutive sequences. If matching symbols appear on reels 1 and 3, but reel 2 contains a Wild symbol, this creates a valid three-symbol consecutive win because the Wild substitutes for the missing symbol on reel 2, maintaining the consecutive chain.
When multiple winning combinations of the same symbol type appear on a single payline, only the highest-value combination is paid. For instance, if the Rainbow Riches Logo appears on all five reels along payline 1, the player receives the 5-symbol payout (500x) rather than receiving separate payments for the 5-symbol, 4-symbol, and 3-symbol combinations that technically all exist within that sequence.
This rule prevents multiple payments for overlapping combinations on the same line, ensuring each payline awards only its single highest value. However, this rule applies per payline, meaning if different paylines each contain winning combinations, all those wins are paid additively.
Wins occurring on different paylines within the same spin are added together to create the total win for that spin. If payline 1 awards a 100x win whilst payline 5 simultaneously awards a 50x win, the total spin result is 150x the stake per line. This accumulation can create substantial total wins when multiple paylines activate simultaneously.
The sequential win presentation shows each winning payline individually with its animation and award display before accumulating and displaying the total win. This presentation method helps players understand exactly which combinations created their total win amount.
Rainbow Riches Free Spins operates under strict fair gaming practices as declared in the game rules: "Each game outcome is completely independent." This means every single spin result is determined independently, with no connection to previous or subsequent spin outcomes.
The Random Number Generator (RNG) produces each spin result without memory of prior results. Previous wins or losses have absolutely no influence on future outcomes. This independence ensures that each spin offers the same mathematical probabilities as every other spin, preventing any form of pattern-based prediction or system that claims to leverage previous results to predict future outcomes.
The game rules explicitly state: "Chances of outcomes are always the same at game start." This guarantees that the probability of any particular symbol combination, feature trigger, or win amount remains constant across all gameplay. The mathematical model does not vary based on play duration, previous results, stake levels (beyond the proportional relationship between stake and win), or any other factor.
This consistent probability structure means players can trust that game mathematics remain stable throughout their session. The 95.17% RTP applies uniformly across all play, and the feature trigger probability remains constant rather than being influenced by how recently the feature last activated.
As stated in the technical rules: "Malfunction voids all pays and plays." In the unlikely event of software malfunction, hardware failure, or technical error affecting game outcome determination or display, any affected gameplay and associated wins or losses are voided. This standard industry protection clause ensures players are not subject to erroneous results caused by technical failures beyond the game's normal operating parameters.
The theoretical RTP of 95.17% represents the expected return calculated over an extended period of play. As explicitly noted: "Expected return is 95.17% (theoretical over many plays)." This percentage reflects the mathematical model's long-term performance across millions of spins, not the guaranteed return for any individual playing session.
Short-term results will vary substantially from the theoretical RTP. Individual sessions may return significantly more or less than 95.17% depending on variance and the probabilistic nature of random outcomes. The RTP calculation includes all game features, base game pays, and free spins returns, averaged across all possible outcomes weighted by their probability.
The maximum win per game is capped at £250,000.00 as clearly stated in the rules. This represents the absolute maximum that can be won from a single spin or feature, regardless of the theoretical payout calculation. As noted: "Maximum may not be reachable from all stake levels."
This stake dependency means players betting at minimum stakes (£0.10) cannot mathematically reach the £250,000 maximum even with the highest-paying combination possible. The maximum win becomes accessible only at higher stake levels where the mathematical payout from maximum combinations approaches or reaches the £250,000 cap. This structure ensures responsible stake-to-win ratios whilst maintaining the headline maximum win figure for appropriate stake levels.
The primary stake display shows the current total stake per spin in a prominent black box with yellow text. This display is labelled "STAKE" and presents the numerical value with two decimal places (for example, "2.00" for a £2.00 stake). This total stake represents the combined amount wagered across all 10 paylines for a single spin.
Directly adjacent to the total stake, the "STAKE/LINE" display shows the stake amount allocated to each individual payline. This value is calculated automatically by dividing the total stake by 10 (the fixed number of paylines). Presented in the same black box with yellow text format, this display helps players understand the per-line investment and how line wins are calculated.
Positioned between the stake displays, the stake adjustment interface features two triangle buttons. The red downward-pointing triangle decreases the stake, stepping down through the available stake levels. The green upward-pointing triangle increases the stake, stepping up through available amounts. These controls allow precise stake selection within the £0.10 to £500.00 range.
Stake adjustments affect both the total stake and stake per line displays simultaneously, maintaining the 10-payline division automatically. Players cannot adjust stakes during active spins or whilst the free spins feature is active.
The information button, displayed as a blue circle containing the letter "i", provides access to comprehensive game information including paytables, feature explanations, payline diagrams, and rule specifications. Clicking this button opens detailed help screens that players can navigate to understand all game mechanics, symbol values, and feature operations thoroughly.
Represented by a gear or cog symbol, the settings button opens game configuration options. These typically include sound controls, animation speed preferences, and other customisable gameplay elements that allow players to tailor the gaming experience to their personal preferences.
The lines display shows "10" in yellow text on a black background, accompanied by the label "LINES". This fixed display confirms that all 10 paylines are perpetually active and cannot be modified. Unlike some slot games where players can select active paylines, Rainbow Riches Free Spins maintains all lines active at all stake levels for simplified, consistent gameplay.
The main spin button features a large green play arrow pointing right, enclosed within a golden ornate frame. This prominent button initiates single spins when clicked, starting the reel rotation and outcome determination process. The large size and central positioning make this button immediately accessible as the primary game interaction point.
During reel spinning, this button may become inactive to prevent accidental additional spin initiation. Once the spin completes and results are displayed, the button reactivates for the next spin initiation.
The autoplay button displays circular refresh arrows within a green square featuring a golden ornate frame. Clicking this button opens the autoplay configuration screen where players select the number of automatic spins (5, 25, 50, or 100) and set optional loss limits (£10, £50, £100, £200) and single win limits (£10, £20, £40, or NEVER).
This feature provides automated gameplay, reducing the physical effort of repeated clicking whilst allowing players to set protective parameters that pause autoplay if losses reach a specified threshold or if a single win exceeds a chosen amount. Autoplay can be cancelled manually at any time by clicking the button again or by triggering the free spins feature.
The gamble button features a playing card back design with a small bottle graphic at the bottom, all contained within a red square with a golden frame. This button only becomes active after winning spins, allowing players to access the gamble feature where they can risk their current win for a chance to double the amount.
When inactive (when no win is available to gamble), the button appears dimmed or disabled. Upon a winning spin outcome, the button activates with its full red border colouration, signalling availability. Players must choose between collecting their win or accessing the gamble feature before initiating the next spin.
A secondary information button appears in the right panel, displaying a blue "i" symbol within a blue square with golden frame. This provides alternative access to game information, allowing players to access help screens regardless of which side of the interface they're focusing on during gameplay.
Positioned in the bottom left corner, the balance display shows the player's current account balance in yellow text on a black background. This value updates automatically after each spin, decreasing by the stake amount when spins are initiated and increasing when wins are awarded. The balance displays with two decimal places for precise amount tracking.
Located in the bottom right corner, the total win display shows the cumulative win amount from the current spin or active feature in yellow text on black background. During base game spins, this displays individual spin wins. During the free spins feature, this accumulates all wins across all free spins, providing a running total of feature performance. The display format matches the balance display with two decimal places.
The centre of the bottom bar features the Barcrest name in blue text within an oval frame, maintaining brand visibility throughout gameplay whilst not interfering with critical game information displays positioned on either side.
The autoplay feature offers four predetermined spin count options: 5, 25, 50, and 100 automatic spins. Players select their preferred quantity before initiating autoplay, determining how many consecutive spins will execute without manual intervention. These four options provide flexibility ranging from brief automated sessions (5 spins) to extended hands-free gameplay (100 spins).
Selected spin counts execute at the same stake level active when autoplay initiates. If a player configures autoplay at £2.00 per spin for 50 spins, the system will execute 50 consecutive spins each wagering £2.00, totalling £100.00 in committed stakes barring early termination from limit triggers.
Autoplay includes configurable loss limits that pause automatic spinning when accumulated losses reach the specified threshold. Four loss limit options are available: £10.00, £50.00, £100.00, and £200.00.
Loss tracking begins when autoplay initiates, calculating the net result of all spins during the autoplay session. If total losses (stakes minus wins) reach the selected loss limit, autoplay terminates immediately, returning control to the player. This protective mechanism prevents uncontrolled loss accumulation during automated play.
For example, if a player selects a £50.00 loss limit and experiences a series of losing or low-paying spins that create a cumulative £50.00 net loss, autoplay stops immediately rather than continuing to the configured spin count completion. This allows players to predetermine their acceptable loss threshold for automated sessions.
Single win limits provide another protective and opportunistic parameter, pausing autoplay when any individual spin win equals or exceeds the specified amount. Four options are available: £10.00, £20.00, £40.00, and NEVER.
When a single win limit is configured and a spin produces a win meeting or exceeding that amount, autoplay pauses immediately after that winning spin completes and pays. This allows players to personally decide whether to continue play, adjust stakes, or collect their winnings after achieving significant individual wins during automated sessions.
The "NEVER" option disables single win limit functionality entirely, allowing autoplay to continue regardless of individual win sizes until the spin count completes or a loss limit triggers. This option suits players who prefer uninterrupted automated sessions.
For instance, if a player configures a £20.00 single win limit and a spin produces a £25.00 win, autoplay stops after awarding that win. The player can then review their position, potentially gamble the win, adjust their stake, or manually continue spinning rather than having autoplay continue automatically.
The CANCEL button appears with white text on a red background. Clicking this button exits the autoplay configuration screen without initiating automated spins, returning the player to manual single-spin gameplay. This allows players to review autoplay options and decide against using the feature without committing to any automatic spins.
The START button displays white text on a gray background. Once players have configured their desired spin count, loss limit, and single win limit, clicking START initiates the autoplay session with those parameters. The button remains inactive until valid configuration parameters are selected.
Autoplay terminates automatically under several conditions:
When autoplay terminates for any reason, the game returns to manual single-spin mode, requiring the player to click the spin button or reconfigure autoplay to continue playing. All wins accumulated during autoplay are added to the balance, and any active feature triggers (such as Free Spins) proceed normally before returning to manual control.
Rainbow Riches Free Spins implements comprehensive colour-blind accessibility by ensuring each symbol possesses unique visual characteristics beyond colour coding alone. Every playing card symbol (10, J, Q, K, A) displays its distinctive letter or number marking, allowing identification regardless of colour perception ability.
The high-value Rainbow Riches Logo symbol features distinctive rainbow text patterns and green background that create shape-based recognition. The Wild Leprechaun symbol's character design with green hat provides unmistakable identification through form rather than colour dependency. The Bonus Free Spins circular badge with "FREE SPINS" text ensures textual rather than purely colour-based recognition.
Interface buttons employ distinct shapes and iconography beyond colour differentiation. The spin button's play arrow, autoplay's circular refresh arrows, gamble button's playing card design, information buttons' "i" symbols, and settings button's gear icon all provide shape-based identification independent of colour perception.
Each button's golden ornate frame creates consistent visual separation from the background whilst unique internal icons ensure functional differentiation. This multi-layered design approach ensures players with various forms of colour vision deficiency can navigate the interface confidently.
Winning lines are indicated through multiple simultaneous methods: visual animation of winning symbols, bright borders around contributing symbols, sequential payline highlighting, and numerical display of win amounts in the Total Win counter. This multi-modal presentation ensures players with colour vision deficiencies receive clear feedback about winning outcomes through animation and movement rather than colour change alone.
All primary control buttons feature generous clickable areas significantly larger than their visual iconography. This oversizing reduces precision requirements for successful interaction, accommodating players with reduced fine motor control, tremor conditions, or alternative input devices.
The main spin button's large size and prominent central positioning make it the easiest target for players with motor control challenges. Stake adjustment arrows, whilst smaller, maintain adequate sizing for accessibility whilst fitting within the control panel layout.
The autoplay feature serves crucial motor accessibility function by eliminating the need for repeated clicking to execute multiple consecutive spins. Players experiencing repetitive strain, fatigue, or limited stamina can configure extended autoplay sessions, reducing physical interaction requirements whilst maintaining gameplay engagement.
Configurable loss and win limits within autoplay ensure players retain protective control without requiring constant manual intervention, balancing accessibility with responsible gambling parameters.
Dedicated up/down arrow buttons for stake adjustment provide straightforward, predictable control that doesn't require precision clicking or dragging interactions. The discrete stepping through available stake levels eliminates the need for fine slider control or complex numerical input, improving accessibility for motor-impaired players.
Critical information displays employ black backgrounds with bright yellow text, creating exceptional contrast ratios that enhance readability for players with reduced visual acuity. The Balance and Total Win displays, stake information, and line counter all utilise this high-contrast scheme for maximum visibility.
The overall interface maintains strong contrast between the purple-gradient background and white/gold text elements, whilst the gray reel background provides neutral separation from the colourful symbols, ensuring clear symbol visibility against their backdrop.
All numerical values, labels, and critical information employ bold, large fonts without decorative elements that might reduce legibility. The Poppins and Space Grotesk font families were selected for their clean, highly legible character forms that maintain clarity even at varying sizes.
Button labels, information displays, and game instructions use sufficient font sizing to ensure readability without requiring screen magnification for most players. The avoidance of thin font weights and excessive stylisation prioritises functional clarity over purely decorative typography.
The gray gradient background behind symbols creates neutral separation that enhances symbol visibility regardless of the symbol's own colouration. This intentional contrast between symbol colours and reel background ensures that both vibrant (Rainbow Riches Logo, Ace, King) and more subdued (10, Q, J) symbols maintain clear definition and readability.
The golden ornate Celtic-style frame surrounding the reel area provides strong boundary definition, ensuring players with reduced peripheral vision can clearly identify the active play area boundaries.
The decision to maintain 10 fixed active paylines eliminates complex decision-making around line selection. Players are not burdened with calculating optimal line activation strategies or understanding variable payline costs, reducing cognitive load and simplifying the core gameplay loop to stake selection and spin execution.
This simplification particularly benefits players new to slot games, those with cognitive processing differences, or anyone preferring straightforward gameplay mechanics without multi-layered strategic considerations.
Every button, display, and control features clear, descriptive labelling in plain language. "STAKE", "LINES", "Balance", "Total Win", "START", "CANCEL" - all labels employ common terminology without jargon or abbreviations that might create confusion.
The consistent positioning of these elements maintains spatial predictability, allowing players to develop muscle memory for control locations and reducing the cognitive effort required to locate specific functions during gameplay.
Detailed information accessible via clearly marked information buttons provides thorough explanation of all game mechanics, symbol values, feature operations, and rule structures. These help screens employ progressive disclosure principles, organising information into logical categories that players can navigate according to their specific knowledge needs.
The availability of help information at any time during gameplay ensures players can clarify understanding without needing to exit the game or consult external resources, supporting self-directed learning and confidence building.
In the idle state, the game awaits player input with all reels stationary and symbols clearly visible. The spin button displays in its active green colour with the play arrow icon prominently visible, signalling readiness to accept input. The balance display shows the current account balance with two-decimal precision, whilst the Total Win display either shows "0.00" or the last winning amount if applicable.
During idle state, players can freely adjust their stake using the up/down arrow buttons, with both the total stake and stake per line displays updating immediately to reflect changes. The autoplay, gamble, information, and settings buttons are all accessible, allowing full control panel interaction without time pressure.
If a previous spin resulted in a win, that win amount remains displayed in the Total Win counter until the next spin initiates. The gamble button activates if a win is available for gambling, allowing the player to choose between collecting the win by spinning again or risking it through the gamble feature.
When the spin button is clicked, reels begin rotating with vertical motion blur creating the impression of rapid symbol movement. Each reel spins independently, maintaining visual interest through varied rotation speeds and stopping sequences rather than simultaneous stops.
During the spinning state, the spin button may become disabled or dimmed to prevent accidental additional spin initiation whilst outcome determination is in progress. The balance updates immediately upon spin initiation, decreasing by the total stake amount to reflect the committed wager.
Stake adjustment controls become inactive during spinning, preventing mid-spin stake changes that would affect outcome determination. The Total Win display may clear to "0.00" as the previous spin's win is collected and the new spin outcome is being determined.
Reels typically stop sequentially from left to right (reels 1, 2, 3, 4, 5 in order), creating anticipation as players watch for winning combinations to form progressively. The stopping sequence is predetermined by the outcome but presented with timing that builds engagement.
Upon landing a winning combination, the game enters win presentation state where winning outcomes are communicated clearly through multiple simultaneous methods. Winning paylines illuminate sequentially, with each winning line highlighted individually to show exactly which symbol combination created that particular win.
Winning symbols display enhanced animation and bright border highlighting, drawing visual attention to the specific symbols contributing to the win. If multiple paylines won simultaneously, the presentation cycles through each winning line, displaying its specific award before moving to the next.
The Total Win display accumulates the win amount, updating to show the cumulative value if multiple paylines are paying. This accumulation may happen sequentially as each payline's win is presented, or as a single total depending on win complexity.
During win presentation, the gamble button activates (displayed with full red border colouration), signalling that the player can choose to risk the current win for a chance to double it. The spin button typically remains accessible, allowing players to collect the win and proceed to the next spin if they decline the gamble option.
Win presentation duration scales with win significance - larger wins may feature extended celebration animations, whilst smaller wins present more quickly to maintain gameplay pace. Sound effects and musical cues accompany win presentation, creating multi-sensory feedback about successful outcomes.
When the Free Spins feature is active, the interface displays a dedicated spin counter showing the number of remaining free spins. This counter decrements after each spin, providing clear visibility of feature progress and remaining guaranteed spins.
An accumulated wins display shows the total winnings generated throughout the entire free spins feature, updating after each spin to reflect cumulative performance. This running total allows players to track overall feature success whilst individual spin wins are also displayed.
The auto-spin mechanism takes control during free spins, executing spins automatically without requiring manual spin button clicks. The spin button may be disabled or hidden during this state, as the feature controls spin execution. Players cannot adjust stakes during free spins, as the bet level is locked to match the triggering spin's stake.
When Bonus symbols appear on reels 1, 3, and 5 during the feature, the retrigger animation plays, and the spin counter increases by the additional awarded spins (10, 15, or 20 depending on original selection). This increment happens immediately, extending the feature transparently.
Upon feature conclusion (either by reaching 0 remaining spins or hitting the 999 total spin cap), the accumulated total win from all free spins is displayed prominently, often with celebratory animation for significant wins. This total is then added to the balance, and gameplay returns to the idle state in base game mode.
Scientific Games serves as the primary developer of Rainbow Riches Free Spins, holding the copyright as explicitly stated: "© 2016 Scientific Games. All Rights Reserved." Scientific Games is a major international gaming corporation with extensive history in both land-based and digital gaming product development.
As the copyright holder since 2016, Scientific Games maintains legal ownership of the Rainbow Riches Free Spins intellectual property, including all game design elements, mathematics, artwork, and implementation. The 2016 release date situates this game within Scientific Games' portfolio of Irish-themed slot games, leveraging the established Rainbow Riches brand recognition.
Barcrest serves as the provider brand under which Rainbow Riches Free Spins is marketed and distributed. The Barcrest name appears prominently in the bottom centre of the game interface within a blue oval logo, maintaining brand visibility throughout gameplay.
Barcrest has extensive heritage in the UK gaming market, particularly in land-based gaming machines. The association with Barcrest signals quality and familiarity to UK players who recognise the brand from physical gaming venues. Barcrest's involvement indicates the game's design was tailored specifically for UK market preferences and regulatory requirements.
The Barcrest branding reinforces the Irish folklore theme's appeal to UK audiences, as Rainbow Riches is one of Barcrest's most recognisable and successful game series. This brand strength contributes to player trust and recognition when encountering Rainbow Riches Free Spins in various gaming environments.
SG Interactive provides the technological platform powering Rainbow Riches Free Spins, as indicated by the "Powered by SG Interactive" branding on the loading screen. SG Interactive represents Scientific Games' digital gaming division, specialising in online and mobile casino game delivery.
The SG Interactive platform handles critical technical infrastructure including Random Number Generation (RNG), game state management, integration with casino operator systems, regulatory compliance mechanisms, and cross-platform deployment enabling desktop and mobile accessibility.
This platform integration ensures Rainbow Riches Free Spins operates reliably across various devices and jurisdictions, maintaining consistent gameplay experience whilst adapting to different regulatory requirements and technical environments. SG Interactive's involvement guarantees professional-grade infrastructure supporting fair, secure, and legally compliant gaming.
As a 2016 release from established providers Scientific Games and Barcrest, Rainbow Riches Free Spins underwent comprehensive regulatory approval processes for markets where it's offered. The game's RNG has been tested and certified by independent testing laboratories to ensure fair random outcome generation meeting jurisdictional requirements.
The stated 95.17% RTP reflects verified mathematical modelling subjected to regulatory review. The game's compliance with UK Gambling Commission requirements (where applicable) ensures responsible gambling features, clear terms presentation, and fair operating procedures are implemented throughout the game's design and functionality.
The explicit declaration of fair gaming principles within the game rules - including outcome independence and consistent probability - demonstrates commitment to transparent, fair gaming practices expected by modern regulatory frameworks and discerning players.
Rainbow Riches Free Spins has a theoretical Return to Player (RTP) of 95.17%. This means that over many plays, the expected return is 95.17% of total stakes wagered. The RTP is calculated theoretically and individual gaming sessions will vary.
The Free Spins feature is triggered when 3 Bonus symbols appear simultaneously on reels 1, 3, and 5. The Bonus symbol appears as a circular badge with FREE SPINS text. Upon triggering, players select from three configurations awarding 10, 15, or 20 free spins respectively, each with different bonus symbol arrangements.
Three Free Spins configurations are available: First pattern awards 10 spins with 3 stacked bonus symbols; Second pattern awards 15 spins with 5 bonus symbols in different arrangement; Third pattern awards 20 spins with 6 bonus symbols in different arrangement. Players select their preferred configuration when the feature triggers.
Yes, the Free Spins feature can be retriggered. Landing 3 additional Bonus symbols on reels 1, 3, and 5 during active free spins awards extra spins. Retriggered spins are added to the remaining count. The maximum cumulative free spins is 999. The feature terminates when the spin count reaches 0 or 999 total spins are achieved.
The maximum win per game in Rainbow Riches Free Spins is £250,000.00. However, this maximum may not be reachable from all stake levels. The actual maximum win available depends on the specific stake level selected by the player.
Rainbow Riches Free Spins offers a stake range from £0.10 minimum to £500.00 maximum per spin. The default stake is £2.00. Stakes can be adjusted using the increase and decrease buttons on the control panel. All 10 paylines are active at all stake levels.
Rainbow Riches Free Spins features 10 fixed paylines. All lines are active at all stake levels and cannot be deactivated. Payline patterns include three straight horizontal lines (top, middle, bottom rows), plus seven shaped patterns including V-shapes, zigzags, waves, M-shape, and W-shape configurations.
The Wild symbol, depicted as a leprechaun character with green hat, substitutes for all symbols except the Bonus symbol. It can appear on any reel during standard gameplay. During the Free Spins feature, Bonus symbols also act as Wilds in addition to their bonus functionality.
Autoplay allows automated consecutive spins with options for 5, 25, 50, or 100 spins. Players can set loss limits (£10, £50, £100, £200) and single win limits (£10, £20, £40, or NEVER) to control gameplay. Autoplay can be cancelled at any time and reduces repetitive clicking for improved accessibility.
The Rainbow Riches Logo is the highest paying symbol, awarding 500x stake for 5 of a kind, 200x for 4 of a kind, and 50x for 3 of a kind. The Ace (A) symbol is the second highest, paying 300x for 5 of a kind, 100x for 4, and 10x for 3. The King (K) pays 200x for 5, 50x for 4, and 10x for 3.
Winning symbols must appear on active paylines starting from the leftmost reel in consecutive positions. Only the highest win is paid per individual payline. Wins on different paylines are added together. The Wild symbol substitutes for all symbols except Bonus to help create winning combinations.
The Gamble feature is an optional function activated after winning spins. Accessed via the playing card button in the bottom right control panel, it allows players to risk their current win for a chance to double it. The feature is only available after winning spins, indicated by the active red-bordered button with card design and bottle graphic.
During Free Spins, the game uses an alternative reel set with different symbol distribution and probabilities optimised for bonus gameplay. Bonus symbols can appear stacked on reel 1, increasing retrigger probability. Bonus symbols also act as Wilds during the feature. The bet level remains the same as the triggering spin.
Rainbow Riches Free Spins was developed by Scientific Games and is powered by SG Interactive. The game is provided by Barcrest, a well-established gaming provider. Copyright 2016 Scientific Games. All Rights Reserved.
The game offers extensive accessibility features including: colour-blind support with unique symbol shapes and letters for differentiation; large clickable button areas for motor accessibility; autoplay to reduce repetitive clicking; high contrast design with black backgrounds and bright yellow text for visual impairment; fixed paylines and clear labelling for cognitive accessibility; and detailed help screens via the info button.
5 reels, 10 paylines, 95.17% RTP, and up to £250,000 maximum win awaits