Relax Gaming Slots at Satoshi Hero

Relax Gaming has been building online slots since 2010 out of Malta, and the Money Train series turned them into one of the most recognized studios in the high-volatility space. At Satoshi Hero we carry 84 Relax Gaming originals — the studio’s own releases, not the thousands of third-party titles their aggregation platform also distributes. That distinction matters: these 84 games represent what Relax Gaming’s own development team actually made, and the quality standard is consistently high.

Founded in 2010 in Malta, Relax Gaming started as a B2B technology supplier before developing their own game studio. Kindred Group — the operator behind Unibet and 32Red — later acquired them, which gave the studio both resources and distribution. They operate under MGA licensing.

Relax Gaming also runs a content aggregation platform that sources games from dozens of partner studios, giving operators access to thousands of third-party titles. That aggregator is separate from what we’re discussing here. The 84 Relax Gaming slots in our catalog are studio originals — every one designed, built, and certified by Relax Gaming’s own team. The Money Train series is the flagship. Beast Mode, Bill & Coin, and Net Gains represent their depth beyond it.

All 84 Relax Gaming titles are playable here with Bitcoin, USDT, ETH, Solana, and the rest of our supported coins. No KYC is required for standard crypto deposits and withdrawals — sign up with an email and play within minutes. We also cover the network fee on crypto withdrawals, so what you see is what you receive.

Every Relax Gaming slot has a free demo mode at Satoshi Hero. Given that several of these titles have very high volatility — Relax’s own classification — spending time in demo mode before real-money play is genuinely useful. The Money Train bonus round, for example, plays out over multiple phases with accumulating modifiers; experiencing that once for free gives you a clear picture of what you’re betting into.

These are the Relax Gaming games ranked highest by position in our catalog, with RTP figures from the game files:

RTP 96.5%, very-high volatility. The latest installment in Relax Gaming’s defining series. The bonus round — the Bonus Train Robbery — launches a train journey with carriage symbols each carrying a modifier: Collector, Payer, Sniper, Necromancer, and others. The combinations between these modifiers are where the extreme win potential lives. This is among the most complex bonus mechanics in any slot at Satoshi Hero.

RTP 96%, high volatility. The Money Cart sub-series runs a different bonus structure from Money Train — simpler, fewer modifiers, more frequent triggers. It gives players the Relax Gaming feel at a lower variance entry point. If Money Train 4’s volatility feels too steep for your bankroll, start here.

RTP 97%, very-high volatility. Among the higher base RTPs in the Relax Gaming catalog. The retro-80s aesthetic belies genuine depth — three separate free-spins modes with different modifier sets, each selectable once you trigger the feature. The 97% RTP combined with very-high volatility means dry spells are real but the ceiling is substantial.

RTP 96.1%, high volatility. A dual-character slot where the Bill and Coin symbols interact through a linked modifier mechanic during free spins. More accessible than the Money Train series while still delivering Relax Gaming’s characteristic big-swing potential.

RTP 96.5%, high volatility. The predecessor to Money Train 4, still among the most-played Relax titles in our catalog. The modifier system is slightly simpler than in MT4, which some players prefer — the bonus round is easier to track in real time while it’s running.

RTP 96.4%, high volatility. Where the Money Train series cemented its reputation. The Bonus Train Robbery mechanic debuted here in its mature form, and many players still consider this the most balanced entry in the series.

Relax Gaming doesn’t have one signature mechanic the way Octoplay uses Hold & Win across its full catalog. Instead, they have a design philosophy: very-high volatility games built around interactive bonus systems where multiple modifier symbols affect each other’s payouts. The Money Train series is the clearest expression of this — you’re not just collecting free spins, you’re watching a system of interacting parts produce an outcome that’s genuinely hard to predict.

Tumbling reels appear across several titles, including some of the non-Money series slots. Cluster-pay structures turn up in the more adventure-themed games. The common thread is complexity in the bonus rather than the base game — Relax Gaming’s base games are typically simple enough, but the features are designed to be studied.

Relax Gaming originals cluster between 96% and 97% RTP — solidly above the industry average and better than many high-profile slot studios. Beast Mode at 97% is genuinely high for the category. Money Train 4 and Money Train 3 both land at 96.5%. The catch is that almost everything in the Relax catalog is high or very-high volatility. A 96.5% RTP with very-high volatility means you can lose a substantial percentage of your bankroll before the math catches up in your favor.

Open the Relax Gaming section in our lobby or search for a specific title. Demos are available for all 84 slots — no login needed. To play for real, deposit with BTC (min 0.00008), USDT (min 2 USDT on TRC-20), ETH, SOL, or any other supported coin. Crypto deposits and withdrawals at Satoshi Hero require no KYC under normal circumstances.

Relax Gaming slots count toward our $700 welcome package wagering requirement (40×). The Money Train bonus can run for a long time on a single trigger — that’s both the appeal and the risk. Use the bet-size controls to set a stake that leaves you enough balance to wait for the feature before you exhaust your session budget.

If you want to explore other high-volatility studios alongside Relax Gaming, Nolimit City and Hacksaw Gaming both carry a similar design sensibility and are in our slots lobby.

Relax Gaming’s 84 originals represent some of the most technically ambitious slot content available anywhere. The Money Train series alone justifies the studio’s reputation — RTP 96.4–96.5%, very-high volatility, and a bonus system complex enough that experienced players still find new things to notice. Beast Mode at 97% RTP rounds out the high end of the catalog. If you’re coming in expecting frequent wins, look elsewhere; if you’re prepared for the volatility profile and want a shot at genuinely large returns, the Relax Gaming section is one of the stronger parts of our lobby. Explore all 84 titles at Relax Gaming games, or see our full slots catalog for more studios.