Best Relax Gaming

Looking for the best Relax Gaming slots to play right now? Our team has reviewed the studio’s full catalogue and selected the top 10 titles spanning the Money Train franchise, the highest-RTP releases anywhere online, and the studio’s signature Megaways and grid mechanics. For more provider-specific slot guides, see our full slots by provider hub.

Top 10 Relax Gaming Slots Ranked by Our Experts

1. Book of 99

• RTP: 99%
• Volatility: High (5/5)
• Reels: 5 reels, 10 paylines
• Max Win: 5,000x stake

Book of 99 is the highest RTP slot anywhere online and the strongest mathematical pick in the entire best Relax Gaming slots catalogue at a market-leading 99%. The 5-reel, 10-payline ancient Greek release was launched in May 2021 and follows a Greek odyssey where one of four heroic characters is chosen at random before heading into the ancient empire in the Bonus Round. The slot was the first of its kind to offer such a generous return when launched, drawing significant industry attention to its math model. See more high-return picks in our best high RTP slots list.

The slot pivots on its expanding-symbol Free Spins feature, triggered by 3 or more book symbols on the same spin (10 free spins awarded). Collecting 99 books in the base game also triggers the bonus, providing an added route to the typical 3-symbol trigger. Once the mythical character is chosen at random, it gains expanding abilities in the Free Spins round, growing to fill the whole reel and catapulting win potential up to the 5,000x maximum. When 3 or more book symbols land in the Bonus Round, 10 free spins are re-triggered, sending win potential soaring once again on the most fortunate sessions.

2. Marching Legions

• RTP: 98.12%
• Volatility: High (4/5)
• Reels: 5 reels, 243 ways to win
• Max Win: 10,000x stake

Marching Legions is Relax Gaming’s Roman-themed release and the second-highest-RTP slot in the studio’s catalogue at 98.12%. The 5-reel, 243-ways-to-win structure runs against a 3D-rendered classical stone Roman road backdrop with a stirring orchestral soundtrack and a visual style closer to a video game than a traditional slot. The high volatility profile concentrates upper-tail outcomes inside the Free Spins feature. For more Roman picks, see our best Roman slots guide.

The slot’s defining mechanic is the legionnaire stack system. The Marching Re-Spins feature triggers whenever a full stack of legionnaire symbols lands, with the stack marching one reel to the left and a re-spin awarded. New stacks landing during the re-spin sequence also convert into Marching Stacks, with the chain continuing until all legionnaire stacks have marched off the leftmost reel. The Free Spins feature expands the mechanic by introducing waves of stacked legionnaires that march across the reels on each free spin, with horn collection triggering additional waves to deliver the 10,000x maximum win on stacked-multiplier sessions.

3. Money Cart 2

• RTP: 98%
• Volatility: Super-High (5/5)
• Reels: 5×4 grid, Bonus Reels mechanic
• Max Win: 5,000x stake (50,000 coins)

Money Cart 2 is the UK-only bonus-only version of Money Train 2, designed to deliver the same Money Cart Bonus feature without the Buy feature restriction that prevents UK players from accessing the bonus directly in the parent game. The 5×4 grid uses Relax Gaming’s Bonus Reels mechanic with no traditional symbols on the reels and no base game payouts. Every spin runs as a streak respin sequence, with collecting coins delivering cash prizes and an assortment of outlaw character modifiers boosting winning opportunities throughout the round.

The slot’s standout figure is the 98% RTP, which sits well above the 96% industry average and ranks among the highest return rates available anywhere online. The trade-off is the lower 5,000x stake maximum win compared to Money Train 2’s 50,000x cap, which is a deliberate compensation for the absence of a base game and the always-on bonus mechanic. Extra reels open up when symbols fill whole reels during the feature for expanded winning potential, and when all possible reels have been activated and all positions occupied, the round comes to a screeching halt awarding 500 coins.

4. Money Train 2

• RTP: 96.4%
• Volatility: Super-High (5/5)
• Reels: 5 reels, 40 paylines
• Max Win: 50,000x stake

Money Train 2 is the cult sequel that made the Money Train franchise into one of the biggest names in modern online slots. The 5-reel, 40-payline structure shifts from the original’s classic Wild West theme to a steampunk-Western hybrid, with the reels set within a modified railroad car running across a desert backdrop. The slot’s reputation for delivering 50,000x stake maximum wins and the Money Cart Bonus feature drove the franchise’s expansion into Money Train 3 (2022) and Money Train 4 (2023), each with progressively higher win caps.

The slot’s pivot is the Money Cart Bonus feature, triggered by 3 or more bonus symbols landing anywhere on the reels. Triggering bonus symbols hold in position and transform into coin values, with 3 re-spins awarded; any additional bonus symbol landing resets the re-spin counter back to 3. The feature introduces multiple outlaw character modifiers including Persistent Payers, Collectors, Sniper, Wideners (which add extra reels), and Necromancers, with chained interactions delivering the bulk of the upper-tail upside. The slot’s structure was so influential that it effectively created the modern bonus-respin slot category that Pragmatic Play, Hacksaw Gaming, and Nolimit City have all subsequently iterated on.

5. Beast Mode

• RTP: 96.32%
• Volatility: High
• Reels: 6 reels, varying ways to win
• Max Win: 25,000x stake

Beast Mode is one of the top Relax Gaming slot games for players who prefer feature-pick variety over single-mechanic gameplay. The slot has an 80s aesthetic and is set on Venice Beach, the second collaboration between Relax Gaming and CasinoGrounds following Iron Bank. The slot is a high-volatility release that delivers feature variety through three distinct free spin modes, each with mechanics that differentiate the bonus paths from one another.

The slot pivots on three distinct Free Spins modes, each with different mechanics. The Mystery Symbol free spins (6 spins) include persistent mystery symbols that reveal matching symbols upon landing, with an Expanding Bomb symbol that explodes and forces the height of the game reels to expand. The Expanding Wild free spins (7 spins) deliver wild symbols that expand downwards whenever they appear, increasing an overall win multiplier by 1x for every wild that lands. The Multiplier Ladder free spins (8 spins) are the most volatile, with the multiplier ladder rising up to 500x to deliver the slot’s headline 25,000x maximum win. Outside the UK, the Buy Free Spins feature costs 80x stake for direct entry to the bonus.

6. Temple Tumble Megaways

• RTP: 96.25%
• Volatility: Super-High (5/5)
• Reels: 6 reels, up to 46,656 Megaways
• Max Win: 7,767x stake

Temple Tumble Megaways is the studio’s signature Megaways title and one of the best slots from Relax Gaming for players who prefer cascading-reel mechanics. The 6-reel structure delivers up to 46,656 ways to win when all positions on the grid are unblocked, set against a Cambodian jungle backdrop with ornate stone-carving symbol design. The slot’s super-high volatility profile concentrates major payouts inside the bonus round. For more cascading Megaways picks, see our best Megaways slots list.

The slot’s bonus structure is unconventional. Rather than triggering free spins from scatter symbols, the Free Spins feature activates when all blocked grid positions are unblocked through chained Tumbles wins (cascading tumbles continue as long as winning combinations keep landing). Once free spins trigger, the player chooses from three modifier options that allow customisation of the bonus volatility profile, with extra free spins, multipliers, or unlimited multipliers all on offer. The modifier choice substantially affects the upper-tail outcome distribution, with the 7,767x maximum win achievable through the unlimited multiplier path on the most fortunate sessions.

7. Money Train

• RTP: 96.2%
• Volatility: Super-High (5/5)
• Reels: 5 reels, 40 paylines
• Max Win: 20,000x stake

Money Train is the originating slot in Relax Gaming’s flagship franchise, released in August 2019 as one of the studio’s earliest titles after Erik the Red. The 5-reel, 40-payline structure runs against a traditional dusty Western town backdrop with a Spaghetti Western-style soundtrack, wooden diamond, spade, heart and club lows, and a notorious sheriff figure as the leader symbol. The slot’s high volatility profile and Money Cart Bonus feature established the franchise template that subsequent sequels would expand on.

The slot’s defining contribution to the modern slots market is the Money Cart Bonus feature, which is now widely regarded as the prototype for the entire bonus-respin slot category that has since exploded across the industry. The feature triggers from 3 or more bonus symbols, with triggering symbols holding in position as coin values and 3 re-spins awarded. The slot introduces several special outlaw symbols including the Widener (which adds another reel for expanded grid coverage), Persistent Payers, and Collectors, with the Buy Feature available outside the UK for direct entry to the Money Cart Bonus.

8. Money Train 3

• RTP: 96.1%
• Volatility: Super-High (5/5)
• Reels: 5 reels, 40 paylines
• Max Win: 100,000x stake

Money Train 3 is the cult favourite in the Money Train franchise and consistently ranks among the most-streamed online slots in the studio’s catalogue. The 5-reel, 40-payline structure shifts the franchise’s visual direction from Wild West (Money Train) and steampunk-Western (Money Train 2) to a futuristic sci-fi setting, with the reels housed inside a metal train sporting a menacing skull at the front of the carriage and a futuristic laboratory backdrop. The super-high volatility profile concentrates the slot’s upper-tail outcomes inside the Money Cart Bonus feature.

The slot’s escalation over Money Train 2 lies in the expanded Money Cart Bonus feature with significantly more special symbols delivering chained interactions. The 100,000x stake maximum win doubles Money Train 2’s cap, and the slot offers 4 Bonus Buys outside the UK including a 100x stake option, a 2 Spin Bonus, a 1 Spin Bonus, and a 500x Persistent Bonus for the highest-volatility entry. The slot’s design and reputation among streamers and high-volatility players helped cement Relax Gaming as a top-tier studio rather than just a Money Train franchise specialist.

9. Money Train 4

• RTP: 96.1% (94% alternate)
• Volatility: Super-High (5/5)
• Reels: 6×6 grid, Scatter Pays
• Max Win: 150,000x stake

Money Train 4 is the final entry in the Money Train franchise, released in September 2023 with a 150,000x stake maximum win that surpasses every previous instalment. The 6×6 grid structure replaces the franchise’s traditional 5-reel, 40-payline layout with a Scatter Pays mechanic, and the visual direction shifts further into the future with planets and solar systems faintly lining the desert sky in the backdrop. UK casinos may run an alternate 94% RTP version due to the very high win potential, and a 90% RTP version exists for the German market specifically.

The slot’s expanded Money Cart Bonus feature delivers over twenty features including the new Arms Dealer bandit (which fires at adjacent symbols to upgrade them), the Unlocker (which unlocks restricted positions), the Reset Plus (which resets the re-spin counter and adds extras), and the Upgrader (which upgrades existing special symbols to higher tiers). Chained Arms Dealer interactions deliver the upper-tail outcomes that justify the 150,000x maximum.

10. Tiger Shrine

• RTP: 96.1%
• Volatility: Medium
• Reels: 6×4 grid, 4,096 to 117,649 ways to win
• Max Win: 10,000x stake

Tiger Shrine is one of the high RTP Relax Gaming slots that delivers feature variety alongside a more accessible volatility profile than the Money Train franchise. The 6-reel, 4-row structure starts with 4,096 ways to win on the base game grid but expands during the bonus round to up to 117,649 ways when the expanding-reels modifier is selected. The slot is set against jungle ruins with layered animal symbols, and the medium volatility profile makes this an unusually accessible Relax Gaming session pick compared to the studio’s super-high-volatility flagships.

The slot’s pivot is the three-mode Free Spins feature, with each mode delivering distinct mechanical advantages. One mode raises the reel height to expand the ways to win count up to 117,649. Another mode boosts the Wild Multipliers, with the multipliers stacking and growing throughout the bonus round. The third mode converts the animal symbols into high-paying tigers, concentrating the higher-value symbol distribution. The 10,000x maximum win sits below the studio’s flagship releases but holds well against most jungle-themed competitors at this RTP level.

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