Free demo & player guide
Rainbow Stacks
No sign-up · no deposit · full screen available
Free slot demo · player guide
Rainbow Stacks
Travel across lush green Irish pastures into a hidden mythical valley and follow the rainbow to find Lucky the Leprechaun ready to unleash treasures in this wildly entertaining game of untold riches. This medium volatile 5-reel, 25-line game delivers an immensely gripping experience by combining compelling game play…
18+ · free play · no account or deposit
Game details checked 21 Aug 2026How we check games
60-second guide
What matters at a glance
Free play
Play Rainbow Stacks here
Open the game above to check its pace, controls and features. Free play stays on SlotsCollector.
Look for
Features worth trying
- 3X5, 25 Lines
3X5, 25 Lines
- Re-Spin Bonus with Multipliers and 4-tiered Jackpot prizes
Re-Spin Bonus with Multipliers and 4-tiered Jackpot prizes.
- Free Spins with Re-Triggers
Free Spins with Re-Triggers
Game overview
What is Rainbow Stacks?
Travel across lush green Irish pastures into a hidden mythical valley and follow the rainbow to find Lucky the Leprechaun ready to unleash treasures in this wildly entertaining game of untold riches. This medium volatile 5-reel, 25-line game delivers an immensely gripping experience by combining compelling game play with detailed art, dynamic animation, and jolly Irish audio. The vibrant symbol set includes a substituting Wild, 4 high pays, 4 low pays, a set of treasure pots that triggers the Jackpot Bonus and a paying scatter that triggers Free Spins. Landing the black pot of gold in the 1 st and 3 rd reels will begin the chase! Watch the 5 th reel to either receive the Grand (Red), Major (Blue), Maxi (Green) or Mini (Violet) Pots of gold that determines which type of Progressive Jackpot prize is up for grabs in the enthralling Re-Spin style Jackpot Bonus. In the Jackpot Bonus, Lucky the Leprechaun presents 3 chances to reveal prize pots. Each time a pot is revealed behind Lucky’s door, it flies over the rainbow and falls into a stack, and chances are reset back to 3! Chances are lost every time no pot is revealed. If the stack of pots reaches the jackpot meter at the top of the screen, then the Jackpot Prize is awarded plus the sum of all collected pot prizes! If the Jackpot meter is not reached, then the sum of all collected pot prizes is awarded! Landing 3 Large Coin Scatter symbols in the base game on reels 2, 3 and 4 will see the moon light up the night valley as Free Spins Bonus is initiated with 8 free games. Each Coin Scatter received during Free Spins awards an additional free game. Landing black pots in the 1 st and 3 rd reels, plus one of the coloured pots in the 5 th reel will trigger the Free Spins’ version of the Jackpot Bonus where more chances can be randomly awarded when the jackpot hasn’t been reached, and no chances remain! ‘RAINBOW STACKS’ is a highly engaging masterpiece crafted to perfection with quality performance, highest attention to detail, and an optimized seamless experience across most platforms. Get ready to immerse yourself in Lucky the Leprechaun’s rainbow to resplendent riches!
How it plays
The features that shape the game
Rainbow Stacks is listed as a Video Slot from Revolver Gaming.
3X5, 25 Lines
3X5, 25 Lines
Re-Spin Bonus with Multipliers and 4-tiered Jackpot prizes
Re-Spin Bonus with Multipliers and 4-tiered Jackpot prizes.
Free Spins with Re-Triggers
Free Spins with Re-Triggers
Buy Free Spins!
Buy Free Spins!
Buy 4 Re-spins Jackpot Bonuses!
Buy 4 Re-spins Jackpot Bonuses!
Medium Volatility
Medium Volatility
RTP
RTP: 90% / 94.5% / 96%
Mobile Portrait & Landscape + Desktop
Mobile Portrait & Landscape + Desktop
Social & Sweepstakes compatible
Social & Sweepstakes compatible
Before you play
Does Rainbow Stacks match what you want?
Judge the format and features first. Theme alone tells you very little about how a game feels.
What this game offers
- Video Slot format from Revolver Gaming
- Medium Volatility volatility
- 3X5, 25 Lines
- Re-Spin Bonus with Multipliers and 4-tiered Jackpot prizes
- Free Spins with Re-Triggers
What to check first
- This page lists RTP at 90–96%; confirm it in the version you open.
- Casino stake limits and feature settings may differ from the free-play version.
- Free play shows the mechanics, but it cannot predict a future result.
Quick answers
Rainbow Stacks FAQ
Clear answers based on the game information and demo status available today.
Can I play Rainbow Stacks for free?
A reliable free demo is currently available on desktop. It opens on this page without an account or deposit.
What type of game is Rainbow Stacks?
Rainbow Stacks is listed as a Video Slot from Revolver Gaming. The confirmed features are listed above.
What is the RTP of Rainbow Stacks?
The RTP shown for Rainbow Stacks is 90–96%. A casino may offer a different configuration, so confirm the value in the in-game information screen.
Can I play for real money here?
No. SlotsCollector provides game information and free demos only; it does not accept bets or deposits.
Game facts
Rainbow Stacks numbers and features
These are the details currently confirmed for this game. Check the in-game information before using real money.
Payouts & risk
- RTP options
- 90–96%
- Volatility
- Medium Volatility
Reels & wins
- Reel layout
- 3×5
- Paylines
- 25
Bonus features
- Free spins
- Yes
- Jackpot
- Yes
Release & devices
- Release date
- 10 Mar 2023
- Platforms
- Desktop, Mobile
More to play
More games from Revolver Gaming
Check real-money availability
This game may be available to play for real money at our partner sites. Availability varies by location.
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