Looking for the best Relax Gaming slots to play right now? We’ve selected 12 titles spanning high-RTP releases, extreme-volatility bonus games, Megaways, cascading reels, player-selectable Free Spins, and some of the studio’s strongest newer releases. For more provider-specific slot guides, see our full slots by provider hub.
What Are the Best Relax Gaming Slots?
| Game | RTP / Volatility | Best For | Play Now |
|---|---|---|---|
| #1 Book of 99 | 99% / High | Highest RTP | Play Now |
| #2 Money Train 4 | Check game panel / Super-High | 150,000x max win and 20+ features | Play Now |
| #3 Marching Legions | 98.12% / High | High RTP with marching respins | Play Now |
| #4 Beast Gains | Check game panel / High | Cascades and Feature Trail upgrades | Play Now |
| #5 Money Train 2 | 96.40% / Super-High | Character modifiers and bonus respins | Play Now |
| #6 Iron Bank | Check game panel / Selectable | Choosing between three bonus strategies | Play Now |
| #7 Nugget Ridge | Check game panel / Check game panel | Sticky Wild progression and multiplier Wild finale | Play Now |
| #8 Beast Mode | 96.32% / High | Three different Free Spins modes | Play Now |
| #9 Temple Tumble Megaways | 96.25% / Super-High | Unlocking the bonus through tumbles | Play Now |
| #10 Bill & Coin | Check game panel / Check game panel | Coin collecting, multiplier ladder or sure-win bonus | Play Now |
| #11 Guitar Quest | Check game panel / Check game panel | Continuous cash collection and player-controlled bonus paths | Play Now |
| #12 Tiger Shrine | 96.10% / Medium | Lower volatility and three bonus choices | Play Now |
Relax Gaming is known for unusually wide differences between its slot math models, ranging from the 99% RTP Book of 99 to extreme-volatility releases with maximum wins reaching six figures. Its catalogue also includes cascading games, bonus-respin formats, Megaways, player-selected Free Spins, persistent upgrades, and newer progression-led mechanics.
Book of 99
Book of 99 remains the obvious mathematical standout in the Relax Gaming catalogue because its headline RTP is 99%, considerably higher than the typical return offered by online slots.
The game itself uses a familiar Book-style structure. Three or more Book symbols award 10 Free Spins, while collecting 99 Books across base-game play provides an additional route into the feature.
One of four character symbols is selected for expanding behaviour during Free Spins. When it lands, it can expand vertically across the reel, while three additional Books retrigger another 10 spins. The maximum win is 5,000x stake.
Money Train 4
Money Train 4 represents the extreme end of Relax Gaming’s payout spectrum, with a maximum win of 150,000x stake and more than 20 different feature interactions.
The Money Cart system uses special symbols including the Arms Dealer, Upgrader, Unlocker and Reset Plus. These can interact with existing symbols, open additional positions, improve modifiers and replenish the respin counter.
The large ceiling therefore comes with substantial mechanical complexity. Money Train 4 is better suited to players who enjoy feature combinations and very high volatility than those looking for a simple Hold-and-Win-style respin game.
Marching Legions
Marching Legions combines a 98.12% RTP with a distinctive respin mechanic built around full stacks of legionnaires.
When a complete stack appears, it marches one reel to the left and awards another spin. New stacks can join the sequence and continue moving across the reels until the marching symbols finally leave the left side of the grid.
Free Spins expand the same idea with repeated waves of marching soldiers. This makes Marching Legions particularly unusual because its high RTP does not come at the expense of a substantial 10,000x maximum win.
Beast Gains
Beast Gains is a 2026 Relax Gaming release built around cascading wins and a Feature Trail that becomes progressively stronger as play continues.
Trail upgrades can introduce Mystery Symbols, additional Wilds, explosive chests, Collectors, persistent Collectors, Coins, extra spins and multiplier increases.
The same progression structure continues through Free Spins, meaning the feature does not rely on one isolated multiplier or Wild mechanic. The attraction is instead the accumulation of multiple upgrades during a successful sequence, with a maximum win of 25,000x stake.
Book of 99 is the clear choice if RTP is your priority, but Marching Legions offers an interesting compromise: its RTP is still exceptionally high at 98.12%, while its 10,000x ceiling is twice that of Book of 99.
Money Train 2
Money Train 2 remains the best single representative of the classic Money Train formula. Three or more Bonus symbols trigger the Money Cart Bonus, where landed symbols remain on the grid and three respins reset whenever another useful symbol appears.
The difference from a basic Hold-and-Win feature is the character system. Persistent Payers, Collectors, Snipers, Wideners and other modifiers can interact with one another and change the value or size of the playing area.
The 50,000x maximum win gives it substantially more upside than the original Money Train while avoiding some of the sheer mechanical density of Money Train 4.
Iron Bank
Iron Bank gives players a direct choice between three Free Spins strategies, each concentrating value in a different way.
Sticky Mystery Symbols retain useful positions, Expanding Re-Spin Wilds focus on extending and improving reel coverage, while Progressive Multiplier Wilds increase their payout values as the bonus develops.
The game therefore suits players who want some control over how their bonus volatility is expressed rather than simply choosing between more or fewer Free Spins.
Does a Higher RTP Mean Giving Up Bigger Wins in Relax Gaming Slots?
In this Relax Gaming sample, the answer is often yes. The highest-RTP games tend to have smaller maximum payout ceilings than the studio’s most aggressive high-volatility releases.
| Game | RTP | Max Win | Tradeoff |
|---|---|---|---|
| Book of 99 | 99% | 5,000x | Highest RTP, lower ceiling |
| Marching Legions | 98.12% | 10,000x | Still very high RTP with double the ceiling |
| Money Train 2 | 96.40% | 50,000x | Lower RTP, much larger upside |
| Money Train 4 | Check game panel | 150,000x | Extreme ceiling with extreme volatility |
The clearest example is Book of 99 versus Money Train 2. Book of 99 gives players an extra 2.6 percentage points of theoretical return, while Money Train 2 increases the maximum win from 5,000x to 50,000x.
If your priority is theoretical return, Book of 99 is the obvious choice. If your priority is payout ceiling, Relax’s lower-RTP, higher-volatility games offer much more upside.
Nugget Ridge
Nugget Ridge was released in September 2026 and uses a comparatively accessible mining theme with mechanics that become stronger as the round develops.
TNT detonators expand upward to create Wild symbols, while the Re-Spin feature turns Bonus symbols into Sticky Wilds.
Free Spins add another layer by holding collected Bonus symbols until the final spin, when they transform into multiplier Wilds. The game therefore rewards accumulation across the bonus rather than requiring every strong outcome to happen immediately.
Beast Mode
Beast Mode offers three Free Spins modes with genuinely different mechanics rather than cosmetic variations of the same feature.
Mystery Symbol Free Spins use persistent Mystery symbols and an Expanding Bomb that can increase reel height. Expanding Wild Free Spins use downward-growing Wilds that also raise an overall multiplier, while Multiplier Ladder Free Spins push the multiplier progressively toward a maximum of 500x.
Its 25,000x maximum makes the Multiplier Ladder route the most aggressive option, while the other two modes place more emphasis on grid improvement.
Which Relax Gaming Slot Has the Best RTP-to-Max-Win Balance?
Book of 99 wins on RTP alone, while Money Train 4 dominates on maximum payout. Players looking for a middle ground should pay closer attention to Marching Legions and Money Train 2.
| Game | RTP | Max Win | Best For |
|---|---|---|---|
| Book of 99 | 99% | 5,000x | Maximum RTP |
| Marching Legions | 98.12% | 10,000x | Best high-RTP balance |
| Money Train 2 | 96.40% | 50,000x | Best balance for bigger-win potential |
| Beast Mode | 96.32% | 25,000x | Feature variety with a large ceiling |
Marching Legions is our best RTP-to-max-win balance for players who want to stay firmly in the high-return end of the catalogue. Its 98.12% RTP is only 0.88 percentage points below Book of 99, while its 10,000x maximum is twice as large.
Money Train 2 is the stronger compromise if you are willing to accept a more typical RTP in exchange for a much larger 50,000x payout ceiling.
Temple Tumble Megaways
Temple Tumble Megaways takes an unusual route into Free Spins. Rather than simply waiting for three or four Scatters, players progressively unblock positions on the grid through successful Tumble wins.
Clearing every blocked position opens the full Megaways grid and triggers the bonus.
Players then choose between different Free Spins modifiers, including additional spins, multipliers and an unlimited-multiplier option. This makes Temple Tumble one of Relax Gaming’s better choices for players who prefer visible progress toward a bonus rather than a purely random Scatter trigger.
Bill & Coin
Bill & Coin gives players three different bonus routes after landing its central characters three times.
The Coin Track focuses on Enhancer and Collect symbols that improve surrounding prize values. The Multiplier Ladder instead rises with successful wins and spins toward a potential 500x multiplier.
The Sure Win Bonus takes a third approach by increasing a guaranteed baseline prize as the round develops. Super versions of all three modes strengthen their respective mechanics, with a maximum win of 10,000x.
Guitar Quest
Guitar Quest is one of Relax Gaming’s major 2026 releases and introduces a continuous cash-collection format through Solo Mode.
The Backstage Bonus provides two separate progression routes, while the Supercharge option lets players directly influence how aggressively the feature develops.
It is a useful addition to this list because it represents Relax Gaming moving beyond its established Money Cart and tumble formulas into a more continuous, player-controlled feature structure.
Tiger Shrine
Tiger Shrine is the most accessible volatility option in this selection, with Relax rating it Medium rather than High or Super-High.
Its Free Spins feature offers three different mechanical paths. One increases reel height and expands the number of ways to win, another improves Wild Multipliers, and the third transforms regular animal symbols into the higher-paying Tiger symbol.
The 10,000x maximum is lower than the headline Money Train games, but the combination of medium volatility and player-selected bonus style makes Tiger Shrine a better fit for players who want less extreme session variance.
Which Relax Gaming Slot Gives You the Most Control Over the Bonus?
Several Relax Gaming slots let players decide how the bonus should behave instead of forcing everyone into the same Free Spins structure. The main difference is whether you are choosing the core mechanic, the volatility profile, or the way value builds during the feature.
| Game | What You Choose | Best For |
|---|---|---|
| Iron Bank | Sticky Mystery Symbols, Expanding Re-Spin Wilds, or Progressive Multiplier Wilds | Choosing the main bonus mechanic yourself |
| Beast Mode | Mystery Symbols, Expanding Wilds, or Multiplier Ladder | Different styles of high-volatility bonus play |
| Temple Tumble Megaways | Different Free Spins modifiers after unlocking the feature | Changing how aggressively the bonus develops |
| Bill & Coin | Coin Track, Multiplier Ladder, or Sure Win Bonus | Choosing between collection, multiplier growth, and guaranteed prize progression |
| Tiger Shrine | Expanded ways, stronger Wild multipliers, or higher-paying Tiger symbols | A more moderate-volatility bonus choice |
Iron Bank gives players the most direct control because each option changes the central mechanic of the bonus itself. Bill & Coin offers the widest contrast between bonus styles, while Tiger Shrine is the better fit if you want player choice without moving into Relax Gaming’s most extreme volatility.
Which Relax Gaming Slot Should You Play?
Best overall: Book of 99
Book of 99 combines a genuinely exceptional 99% RTP with an easy-to-understand expanding-symbol Free Spins feature and a 5,000x maximum win.
Best for maximum payouts: Money Train 4
The 150,000x ceiling is comfortably the largest among the games compared here, although reaching the upper end depends on navigating one of Relax Gaming’s most complex feature structures.
Best balance of high RTP and bigger max win: Marching Legions
Marching Legions returns 98.12% while still offering a 10,000x ceiling, making it an unusually strong compromise between theoretical return and maximum payout.
Best bonus-respin slot: Money Train 2
Money Train 2 keeps the franchise’s central Money Cart concept while offering enough character interactions to create significant depth without reaching Money Train 4 levels of complexity.
Best for choosing your bonus: Iron Bank
Its three heist strategies let players choose between Mystery symbols, expanding Wild respins and progressive multiplier Wilds.
Best modern cascade slot: Beast Gains
Cascading wins continually feed the Feature Trail, which can unlock additional Wilds, multipliers, Collectors and other upgrades.
Best lower-volatility option: Tiger Shrine
Tiger Shrine combines Medium volatility with three selectable Free Spins mechanics and a 10,000x maximum win.
Relax Gaming Slots FAQ
What is the best Relax Gaming slot?
Book of 99 is our best overall Relax Gaming slot because its 99% RTP is exceptional while the expanding-symbol Free Spins remain relatively simple to understand. Money Train 4 is the better choice for players prioritising maximum payout potential.
Which Relax Gaming slot has the highest RTP?
Book of 99 has a published RTP of 99%, the highest among the Relax Gaming slots compared here. Marching Legions follows at 98.12%.
Which Relax Gaming slot has the biggest max win?
Money Train 4 has a maximum win of 150,000x stake, making it the largest fixed payout among the games in this comparison.
Which Relax Gaming slot is best for bonus respins?
Money Train 2 is our preferred bonus-respin game because its Money Cart Bonus combines sticky prize values with several different character modifiers capable of interacting with the grid and each other.
Which Relax Gaming slot lets you choose the bonus?
Iron Bank offers three different heist strategies, while Beast Mode and Tiger Shrine also let players choose between several Free Spins mechanics. Bill & Coin takes the idea further with separate collection, multiplier and sure-win bonus structures.
Which Relax Gaming slot has lower volatility?
Tiger Shrine is rated Medium volatility, making it substantially less aggressive than Super-High releases such as Money Train 2 and Money Train 4.
What is Relax Gaming’s newest slot on this list?
Nugget Ridge was released on September 3, 2026. It uses TNT-created Wilds, Sticky Wild respins and a Free Spins finale where collected Bonus symbols transform into multiplier Wilds.
Gavin has spent over a decade writing about online casinos across every major operator and market. He has hundreds of published articles about online casinos, games like slots, blackjack, and roulette, and has played at top sites across the world.