Relax Gaming Slots: Dream Drop Jackpots, RTP and Where to Play in the US

Who is Relax Gaming?

Relax Gaming was founded in 2010 by Patrik Osteraker and Jani Tekoniemi with a simple goal: to become a leading technical provider of high-quality gaming solutions. The company started out building video slots, then broadened into proprietary poker and bingo products in the middle of the decade. Along the way it opened offices across Europe, including Tallinn, Malmo, Belgrade, Novi Sad, Gibraltar, Stockholm and Malta, with Malta becoming the corporate headquarters and license base. In 2025 the company marked its 15th anniversary with more than 300 employees, a milestone that underlines how far it has come from a small startup.

The ownership story is where a lot of guides get confused, so it is worth setting straight. In 2021 the Kindred Group, the operator behind brands such as Unibet and 32Red, acquired the outstanding shares in Relax Gaming it did not already hold, a deal that valued the equity at roughly 295 million euros. Relax Gaming then became the in-house games studio inside Kindred. In 2024, French national operator La Francaise des Jeux, now trading as FDJ United, completed a takeover of Kindred Group worth about 2.45 billion euros. The upshot for players is that Relax Gaming today sits inside the FDJ United group by way of Kindred, giving the studio the backing of one of Europe’s largest listed gambling companies while keeping its own name, roadmap and development team.

Relax Gaming holds licenses from a stack of tier-one regulators, including the UK Gambling Commission, the Malta Gaming Authority, the Gibraltar authority, Romania’s ONJN and the Alcohol and Gaming Commission of Ontario. For the American market it operates through a US-facing arm often branded RLX Gaming, licensed by the New Jersey Division of Gaming Enforcement. What sets Relax apart from a pure content house is its distribution model. Alongside its own games, the company runs two aggregation programs, Silver Bullet and Powered By Relax, that let it pipe a huge library of third-party slots to operators through a single integration. That two-sided identity, part studio and part platform, is central to understanding the brand.

How many slots does Relax Gaming have?

There are really two numbers to know. The first is the studio’s own output. Relax Gaming has published more than 350 proprietary titles over its history, the vast majority of them video slots, and it continues to ship new in-house games on a regular cadence. The second number is far larger and comes from aggregation. Through the Powered By Relax platform and the Silver Bullet program, operators plugged into Relax can reach a combined catalog of more than 7,000 games drawn from over 50 partner studios. That is why a casino will sometimes market Relax Gaming as a gateway to thousands of slots rather than a few hundred.

The two aggregation programs do different jobs. Silver Bullet is a curated distribution deal for independent studios that meet Relax’s quality bar, letting boutique developers such as Print Studios, 4ThePlayer, Peter & Sons, ReelPlay and AvatarUX reach a wide operator network without building their own commercial pipeline. Powered By Relax goes a step deeper: it is a white-label technical platform where partner studios build games directly on Relax’s remote gaming server, math tooling and certification infrastructure. Two of the biggest names in modern slots, Nolimit City and Hacksaw Gaming, launched through Powered By Relax before growing into independent forces, which tells you how influential the platform has been. Our Hacksaw Gaming studio page covers one of those alumni in detail.

Not every one of those thousands of games reaches the United States. Regulated US casinos carry a curated subset, and the count in any given state depends on what the operator has chosen to certify and load through the local approval process. In the markets where Relax Gaming has gone live, players typically see a growing shelf of the studio’s own headliners plus a rotating selection of partner content, and that list expands as new titles clear state-level testing. For a running look at fresh arrivals across every provider, our new slots hub tracks what has just launched, and the broader software directory lets you line Relax up against the rest of the market.

Most popular and signature Relax Gaming slots

Relax Gaming built its reputation on a handful of instantly recognizable, high-ceiling titles. Here are the signature games worth knowing before you shop a lobby.

The Money Train series is the studio’s calling card. The original Money Train arrived in 2019 with a Wild West theme and a bonus round built around respins and collecting cash symbols. Money Train 2 raised the stakes with a top prize of up to 50,000 times your stake and an extreme-volatility profile that made it a cult favorite. Money Train 3, released in 2022, pushed the ceiling to 100,000 times stake on a five-by-four grid, and Money Train 4 arrived in 2023 on a six-by-six layout with a Money Cart bonus packing 21 modifiers, a headline potential of up to 150,000 times stake and a base return of around 96.10 percent. The Money Cart mechanic, where the base game falls away and a respin feature does all the heavy lifting, has become a template that many rivals now imitate. Availability of individual Money Train titles varies by operator and by state, so check the lobby you are playing in.

Temple Tumble Megaways is another cornerstone. Built on the Megaways engine with up to 46,656 ways to win, tumbling reels and destructing wilds, it pays back around 96.25 percent and can return up to roughly 7,767 times stake. Its jackpot-enabled follow-up, Temple Tumble 2 Dream Drop, has become the most-played game on the Dream Drop network. Hellcatraz, inspired by the notorious island prison, uses a six-by-six grid with 46,656 ways, a choice of Mixed Mode or higher-variance Lockdown Mode, published RTP versions of 96.46 or 96.30 percent, and a top win of up to 51,840 times stake. Marching Legions is a fan favorite for a different reason: it has shipped with an unusually generous RTP as high as 98.12 percent while still offering a 10,000 times stake ceiling. Book of 99 takes that idea to its limit with a Greek mythology theme and a remarkable 99 percent RTP, one of the highest of any mainstream online slot, paired with a max win north of 12,000 times stake.

Other flagship Relax Gaming titles include the cluster-pays hit Cluster Tumble at around 96.4 percent and a 20,000 times ceiling, the high-octane Dead Riders Trail and Dead Man’s Trail with 50,000 times top prizes, the vault-heist favorite Iron Bank and its sequel, plus Snake Arena, Wild Chapo, The Great Pigsby and Bill & Coin. There is also the standalone Money Cart line, which spins the Money Train respin round off into its own game; Money Cart and Money Cart 2 are prized by value-focused players for RTP figures reported around 98 percent.

A useful thing to notice is that Relax tends to build in families rather than one-off hits. The Money Train games, the Tumble line that runs from Temple Tumble through Cluster Tumble and beyond, the Money Cart spinoffs, the Iron Bank vault series and the Bill & Coin titles all reuse a proven engine with fresh dressing, so once you learn how one entry behaves you can predict the rhythm of the next. To see how these rank against everything else on the American market, browse our most popular slots list.

Relax Gaming RTP: typical range and operator versions

A slot’s RTP figure tells you what share of total wagers the game is engineered to return over millions of spins, and it is one of the first stats a seasoned player looks up. Across Relax Gaming’s headline catalog that number tends to land in the mid-90s, with most marquee titles configured close to 96 percent. Money Train 4 sits at about 96.10 percent, Temple Tumble Megaways at roughly 96.25 percent, Hellcatraz at 96.46 percent in its standard mode and Cluster Tumble around 96.4 percent. At the generous end, the two Money Cart spinoffs have been reported near 98 percent, Marching Legions has run as high as 98.12 percent, and Book of 99 carries a genuinely unusual 99 percent RTP, a trio that ranks among the most player-friendly figures anywhere in slots.

There is a crucial caveat that many guides skip. Relax Gaming builds many of its slots with multiple selectable RTP configurations, and the operator chooses which version to deploy. That means the same game can run at one RTP at one casino and a noticeably lower RTP at another. On top of that, titles with a buy bonus option often carry a slightly different RTP when you pay to trigger the feature directly. Money Train 4, for example, publishes a marginally higher return on its bonus buy than on standard spins. The practical takeaway is always the same: open the game’s own information screen inside the casino you are playing at, because the number printed there is the one that actually applies to your spins. Our RTP explainer walks through how to read that paytable and why the in-game figure, not a headline you saw elsewhere, is the one that counts.

Relax Gaming volatility: high and low examples

Where RTP tells you how much a slot pays back over time, its volatility tells you the rhythm of those payouts, whether they arrive as a frequent drizzle of small hits or a rare downpour. Relax Gaming has planted its flag firmly at the wild end of that spectrum. The Money Train series is the textbook case of extreme volatility, with Money Train 2, 3 and 4 all rated at or near the top of Relax’s own five-point scale. These are games that can run cold for long stretches and then pay tens of thousands of times stake in a single Money Cart round, so they reward patience and a bankroll sized to absorb the dry spells. Hellcatraz in its Lockdown Mode and the other six-figure-ceiling titles sit in the same bracket.

Relax does build gentler games, though, and it is worth seeking them out if you prefer longer sessions. Titles like Book of 99, despite high theoretical swings, and several of the cluster and Dream Drop editions are tuned for more frequent engagement, and the lower-tier Dream Drop jackpots hit often enough to keep things moving even when the base game is quiet. The key is to match the game to your temperament and budget rather than chasing the biggest number on the marketing sheet. If you are new to reading these swings, our volatility guide explains how to pick a title that fits how you actually like to play.

Special features and mechanics

Beyond the Dream Drop network, Relax Gaming has a recognizable toolkit of mechanics that recur across its catalog. Knowing them helps you predict how a new release will behave before you spin.

• The Money Cart bonus. Relax’s signature respin feature, where the base reels vanish and a dedicated bonus grid fills with cash values, collectors, multipliers and other modifiers that can chain into enormous wins. It anchors the entire Money Train series.
• Megaways. Licensed from Big Time Gaming, this mechanic changes the number of symbols on each reel every spin, creating up to 46,656 shifting ways to win. Relax applies it to Temple Tumble Megaways and others. Read more on our Big Time Gaming page.
• Infinity Reels. Licensed from ReelPlay, this format adds a fresh reel every time a win lands, extending the grid indefinitely as the chain continues and building multipliers along the way.
• Megaclusters. A cluster-pays mechanic where winning symbols split into four smaller symbols, growing the grid and cascading wins across a single spin.
• Cascading and tumbling reels. Winning symbols are removed and replaced by new ones dropping in from above, chaining consecutive wins from one spin and often stacking a rising multiplier along the way. This drives the Tumble series and many cluster titles.
• Blocked and obstacle symbols. Some grids start partly walled off, and clearing blocked positions expands the playing field to unlock extra ways to win, a hook used in games such as Space Miners and Temple Tumble 2.
• Buy bonus. Many Relax slots let you pay a set multiple of your stake to jump straight into the feature round, a popular option on high-volatility titles that usually carries its own published RTP. Note that some regulated markets restrict or ban the buy bonus, so it may not appear on every title in every state.
• Dream Drop jackpots. The five-tier network prize that can trigger at random on any real-money spin of an enrolled game, independent of the base result.

Regulated US casinos with Relax Gaming slots

Relax Gaming content reaches American players only through licensed, state-regulated operators. Below are the leading regulated homes for the studio in the US, with a short look at how each handles Relax slots specifically. Both are covered in more depth on their own review pages.

Hard Rock Bet Casino

Hard Rock Bet was one of the first regulated US operators to bring RLX Gaming aboard, adding the studio’s slots to its New Jersey app to expand an already large multi-studio floor. Players there will find beloved Relax titles such as Temple Tumble, The Great Pigsby and Bill & Coin sitting alongside the company’s newer releases, with the selection growing as fresh games clear certification. The one thing to watch is footprint: Hard Rock Bet’s online casino runs in a narrower set of states than some rivals, so confirm it is live where you are before counting on the full Relax lineup. The Hard Rock Bet Casino review lays out banking, bonuses and exactly where it operates.

BetMGM Casino

BetMGM has been a central distribution partner for Relax Gaming in the regulated US market, carrying the studio’s content in New Jersey and extending it into Pennsylvania as Relax cleared approval there. If you filter the BetMGM lobby for Relax titles you will find the signature high-volatility games and, where enrolled, Dream Drop jackpot editions, tuned to run across the operator’s Android app, iOS app and desktop site. BetMGM’s wide multi-state footprint makes it one of the more reliable places to find Relax slots as the studio expands. See the full BetMGM Casino review for the current state list, banking and promotions.

Those two are the anchors today, but Relax Gaming content will appear at more regulated operators as the studio widens its US footprint. For the broader picture of who offers what, our real-money slots hub compares the licensed US casinos side by side.

How Relax Gaming compares to other studios

Relax Gaming occupies a distinctive spot on the American slot floor. Where a studio like Pragmatic Play floods lobbies with a high volume of releases and aggressive buy-a-bonus mechanics, Relax leans on a smaller number of high-ceiling blockbusters plus its Dream Drop network as the differentiators. Compared with the classic reels and lower-variance staples of NetEnt, Relax skews far more toward extreme volatility and six-figure top prizes, the kind of math that made the Money Train series a phenomenon. Against a mechanics purist like Play’n GO, Relax matches the appetite for bold features while adding its aggregation platform, which no pure studio offers in the same way.

The aggregation angle is really Relax’s superpower. Because it distributes Silver Bullet and Powered By Relax partners as well as its own games, an operator that integrates Relax gains access to a catalog that rivals a specialist aggregator like Games Global. If you enjoy Relax’s blend of enormous top prizes and inventive bonus rounds, you will likely also get along with Big Time Gaming, whose Megaways engine Relax licenses, and with Red Tiger for its own network jackpots. The point is not that one studio is better, but that Relax’s identity, high-volatility signature slots plus a Dream Drop jackpot layer plus a platform business, is easy to recognize once you know what to look for.

Mobile play

Relax coded its entire library in HTML5 from the outset, so each slot renders in a phone or tablet browser with the same clarity it has on desktop, adapting to portrait orientation with roomy touch controls and loading quickly even over a cellular signal. The games require no separate install. Launch a Relax title from within a licensed operator’s app or mobile website and the identical certified build streams to your handset, Dream Drop network and everything else intact. That matters more here than for most studios, because a jackpot that can fire at random means the Mega prize is exactly as within reach during a phone session on the bus as it is at a desktop after dinner. For a wider look at how the top US apps present this content, our hub for playing slots on mobile walks through the differences.

Real-money and free play

Relax Gaming titles come in two play modes. Wagering real money at a licensed US operator is the only path to the Dream Drop jackpots and to cashing out winnings, since those prize pools are fed by genuine bets and can only pay genuine money. Access is limited to the states where the operator holds a license, and it means opening an account, clearing identity checks and being physically inside a permitted state when you play.

The alternative is demo play, where an operator offers it, letting you run a Relax game on virtual credits to study its mechanics and gauge its swings before risking your own funds. That trial matters more with a studio this volatile, because a free session shows you just how long a Money Train or Hellcatraz can stay quiet before the feature finally lands. Demo access varies by operator and by state, and the jackpot rounds typically stay dormant in practice mode since no real stake is topping up the pool. Our guide to demo slots lays out where free play is available and how it departs from the paid version. A practical habit worth forming: sample the bonus round in demo first, because the highlight-reel buzz of a launch trailer rarely matches how a base game grinds over an hour of real spins.

Play responsibly

Think of Relax Gaming slots as a paid pastime rather than an income stream, and remember that the studio’s steep volatility means the headline feature will skip most of your sessions entirely. Decide in advance how much you are willing to spend, keep that ceiling fixed no matter how a session goes, and walk away instead of trying to win back what a cold streak took. Wagering real money is open only to players who meet their state’s minimum age, either 18 or 21 depending on the jurisdiction, and who are within a state that licenses the operator. Should the fun drain out of it, or should the habit start to weigh on you, confidential help is a phone call away at any hour: dial 1-800-GAMBLER to reach free support. For a deeper look at reading the math before you wager, our guide to slot RTP is a good next stop.

Last reviewed: August 2026

Relax Gaming Slot Reviews

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