Illustration: a steampunk armoured train thundering through a desert canyon at sunset, golden coins flying from its open cargo car
Provider

Relax Gaming

Top pick: Money Train 2 Max wins up to 150,000x High to very high volatility

Relax Gaming makes slots for people who can sit through a lot of nothing. Every game we scored is high or very high volatility, six of them list max wins of about 50,000x or more, and the bonus rounds are some of the best-designed anywhere. Money Train 2 is the reason a lot of players know the name.

It didn't start as a slot studio. Relax's about page says Patrik Österåker and Jani Tekoniemi founded it, and the timeline there runs through poker, bingo and a casino platform for partner studios before the in-house games arrive.

The flip side of those big numbers: Relax's own game pages list 90% RTP versions for German players on most of these games. Over the long run, that's almost three times the cost of a 96.4% version. We'll get to it.

Eight games scored, ranked below. Most of the headline RTPs come from slotcatalog, because Relax's own pages publish bets, max win and the lower settings, but not the top figure.

At a glance

Best for
Players with a budget built for long dry spells who want a bonus round that can do something enormous
Top of our table
Money Train 2, Spin Score 8.5
The catch
Six of the eight games have a 90% RTP version listed on Relax's own site
Max win range
2,758.8x (Snake Arena) to 150,000x (Money Train 4)
Bonus buys
On most of the catalogue, not offered in the UK, and the price is 70x to 500x your stake
Play instead if...
You want gentler sessions: NetEnt's low-volatility games or Play'n GO's Gemix
8Slots scored
96.25%Median top RTP
96.1%–96.46%RTP range
2,758x–150,000xMax win range
7 of 8With lower RTP settings
High 6, Very high 2Volatility mix

On this page

The 8 best Relax Gaming slots, ranked

Every Relax Gaming slot we scored, in Spin Score order. Spin Score = 40% RTP, 15% max win, 30% free spins round, 15% base game. How we score

#SlotScoreRTPMax winVolatility
1Money Train 28.5/1096.4%50,000xHigh
2Money Train 48.3/1096.1%150,000xVery high
3Money Train 38.2/1096.1%100,000xVery high
4Hellcatraz8.0/1096.46%51,840xHigh
5Dead Man's Trail7.8/1096.29%50,000xHigh
6Iron Bank7.5/1096.2%49,999xHigh
7Temple Tumble Megaways7.3/1096.25%7,767xHigh
8Snake Arena6.4/1096.25%2,759xHigh
1

Money Train 2

High volatility · Full guide

8.5/10Spin Score
  • RTP 96.4% (lowest setting 90%)
  • Max win 50,000x
  • Volatility: High
  • 5x4, 40 lines
  • Released Sep 2020
  • Bets 0.1–20

The bonus scores 10, our maximum. The Money Cart is a three-respin hold-and-win where Collector, Payer, Sniper and Necromancer symbols collect, add and multiply values, and the grid grows when reels fill. Relax lists a 50,000x max win. RTP 96.4% per slotcatalog, with a 90% German version on Relax's page. Hit frequency 19.55%, roughly one win in five spins. The 100x bonus buy isn't sold in the UK. Our Money Train 2 guide covers it all.

How the score breaks down, and the fine print
  • Return to playerData · 40%8.2
  • Max winData · 15%10.0
  • Free spins roundEditors · 30%10.0
  • Base gameEditors · 15%5.0

What it is: A 5x4, 40-line western slot built around the Money Cart bonus: a sticky-symbol respin round where special characters collect, add and multiply values.

Free spins round: The Money Cart bonus is a 3-respin hold-and-win round with Collector, Payer, Sniper and Necromancer symbols, and the grid grows when reels fill.

Base game: Two scatters trigger a respin feature with a building multiplier; outside that, base spins are mostly quiet.

RTP, volatility and max win as Relax Gaming publishes them, checked on November 3, 2026. A casino may run a lower RTP setting: check the game’s info screen.

Game page at Relax Gaming
2

Money Train 4

Very high volatility

8.3/10Spin Score
  • RTP 96.1%
  • Max win 150,000x
  • Volatility: Very high
  • 6x6, pay anywhere
  • Released Sep 2023
  • Bets 0.1–6

The biggest ceiling here: 150,000x, per Relax. This one ends the series with a 6x6 scatter-pays base game and a Money Cart that starts on 6x4 and unlocks rows, with the Arms Dealer, Upgrader, Unlocker and Reset among more than 20 features. It's second rather than first because of RTP: 96.1% per slotcatalog, and a UK GameID ending in _92 suggests a 92% UK version. Slotcatalog rates it 5 out of 5 on Relax's volatility scale.

How the score breaks down, and the fine print
  • Return to playerData · 40%7.3
  • Max winData · 15%10.0
  • Free spins roundEditors · 30%10.0
  • Base gameEditors · 15%6.0

What it is: A scatter-pays slot that ends the Money Train series, with a Money Cart hold-and-win bonus starting on 6x4 and unlocking more rows.

Free spins round: The final Money Cart bonus adds the Arms Dealer, Upgrader, Unlocker and Reset, with more than 20 features in play.

Base game: A base game respin feature and the Arms Dealer, who can hand out features at any time, add some base action.

RTP, volatility and max win as Relax Gaming publishes them, checked on November 3, 2026. A casino may run a lower RTP setting: check the game’s info screen.

Game page at Relax Gaming
3

Money Train 3

Very high volatility

8.2/10Spin Score
  • RTP 96.1% (lowest setting 90%)
  • Max win 100,000x
  • Volatility: Very high
  • 5x4, 40 lines
  • Released Sep 2022
  • Bets 0.1–10

The middle sequel adds persistent characters to the Money Cart: the Shapeshifter, Absorber and Tommy Gun keep acting on every respin. Max win 100,000x per Relax. Its RTP habit is the worst-documented of the three: Relax's page lists a 94% alternative and a 90% German version alongside the 96.1% slotcatalog gives, plus a UK GameID suggesting 92%. Four bonus buy levels, including a 500x persistent option. Skip that one. The base game is mostly waiting.

How the score breaks down, and the fine print
  • Return to playerData · 40%7.3
  • Max winData · 15%10.0
  • Free spins roundEditors · 30%10.0
  • Base gameEditors · 15%5.0

What it is: A 5x4, 40-line sequel where the Money Cart hold-and-win bonus adds persistent symbols that keep acting on every respin.

Free spins round: Money Cart bonus with persistent characters, the Shapeshifter, Absorber and Tommy Gun, plus four bonus buy levels including a 500x persistent option.

Base game: Base game has some respin teases, but most value sits in the bonus.

RTP, volatility and max win as Relax Gaming publishes them, checked on November 3, 2026. A casino may run a lower RTP setting: check the game’s info screen.

Game page at Relax Gaming
4

Hellcatraz

High volatility

8.0/10Spin Score
  • RTP 96.46% (lowest setting 96.3%)
  • Max win 51,840x
  • Volatility: High
  • 6x6, 46,656 ways
  • Released May 2020
  • Bets 0.1–25

The best-balanced Relax game. A 6x6 grid with 46,656 ways, cascades, and countdown mystery symbols on every spin. Key symbols fill a 2,000-key meter that unlocks Super Free Spins, where mystery symbols reveal at once. You choose Mixed or Lockdown mode: slotcatalog lists 96.46% RTP for Mixed and 96.30% for Lockdown. Max win 51,840x per slotcatalog. Highest top RTP of the eight.

How the score breaks down, and the fine print
  • Return to playerData · 40%8.4
  • Max winData · 15%10.0
  • Free spins roundEditors · 30%7.0
  • Base gameEditors · 15%7.0

What it is: A 6x6, 46,656-ways slot with cascades and countdown mystery symbols. Key symbols fill a 2,000-key meter that unlocks Super Free Spins.

Free spins round: Super Free Spins unlock after 2,000 keys and reveal mystery symbols at once, with golden mystery symbols adding spins.

Base game: Countdown mystery symbols and cascades run on every spin, with a choice of Lockdown or Mixed mode.

RTP, volatility and max win as Relax Gaming publishes them, checked on November 3, 2026. A casino may run a lower RTP setting: check the game’s info screen.

Game page at Relax Gaming
5

Dead Man's Trail

High volatility

7.8/10Spin Score
  • RTP 96.29% (lowest setting 90%)
  • Max win 50,000x
  • Volatility: High
  • 5x4, 40 lines
  • Released Sep 2021
  • Bets 0.1–20

The Trail Bonus is a board game: you move 1 to 9 steps and each tile adds a multiplier, a collector, a coin win, or ends the run. It's a fun idea and scores 8. In the base game, coins on three or more reels pay a cash award, and that's about all. Max win 50,000x per Relax, RTP 96.29% per slotcatalog, German version 90%. Bonus buy at 100x, not in the UK.

How the score breaks down, and the fine print
  • Return to playerData · 40%7.9
  • Max winData · 15%10.0
  • Free spins roundEditors · 30%8.0
  • Base gameEditors · 15%5.0

What it is: A 5x4, 40-line pirate slot. Three bonus symbols start the Trail Bonus, a map board where every tile triggers a reaction.

Free spins round: The Trail Bonus is a board game where you move 1 to 9 steps and each tile adds multipliers, collectors, coin wins or ends the run.

Base game: Coin symbols on 3 or more reels trigger the Coin Feature cash award in the base game.

RTP, volatility and max win as Relax Gaming publishes them, checked on November 3, 2026. A casino may run a lower RTP setting: check the game’s info screen.

Game page at Relax Gaming
6

Iron Bank

High volatility

7.5/10Spin Score
  • RTP 96.2% (lowest setting 90%)
  • Max win 49,999x
  • Volatility: High
  • 6x4, 4,096 ways
  • Released Nov 2020
  • Bets 0.1–20

A heist slot made with CasinoGrounds. Three bonus symbols open free spins and you pick one of three modes: sticky mystery symbols, expanding respin wilds, or progressive multiplier wilds, each with different volatility. That choice is good design. The base game is weak, mostly bonus-symbol instant wins of 20x to 2,000x. Max win 49,998.9x per Relax. RTP 96.2% per slotcatalog; 90% in Germany.

How the score breaks down, and the fine print
  • Return to playerData · 40%7.6
  • Max winData · 15%10.0
  • Free spins roundEditors · 30%8.0
  • Base gameEditors · 15%4.0

What it is: A 6x4, 4,096-ways heist slot made with CasinoGrounds. Three bonus symbols open free spins with a choice of three modes of different volatility.

Free spins round: Free spins let you choose one of three heist modes: sticky mystery symbols, expanding respin wilds, or progressive multiplier wilds.

Base game: Bonus symbol instant wins (20x to 2,000x for 4 to 6) are the main base game event.

RTP, volatility and max win as Relax Gaming publishes them, checked on November 3, 2026. A casino may run a lower RTP setting: check the game’s info screen.

Game page at Relax Gaming
7

Temple Tumble Megaways

High volatility

7.3/10Spin Score
  • RTP 96.25% (lowest setting 90%)
  • Max win 7,767x
  • Volatility: High
  • 6x6 Megaways, 46,656 ways
  • Released Feb 2019
  • Bets 0.2–100

The Megaways one. Wins tumble and break stone blocks to open more of the 6x6 grid, up to 46,656 ways, which keeps the base game lively. Free spins offer three paths: more spins, multipliers with extra spins, or bigger multipliers alone. The max win is what holds it back: 7,767x per slotcatalog, small for Relax. RTP 96.25%, with a 90% German version and a UK GameID suggesting 92%.

How the score breaks down, and the fine print
  • Return to playerData · 40%7.8
  • Max winData · 15%6.8
  • Free spins roundEditors · 30%7.0
  • Base gameEditors · 15%7.0

What it is: A 6x6 Megaways slot with up to 46,656 ways. Wins tumble and break blocks to open more of the grid, and free spins offer three mode choices.

Free spins round: Free spins let you pick one of three modes: extra spins, multipliers with extra spins, or bigger multipliers alone.

Base game: Tumbling wins break stone blocks and open up more ways in the base game.

RTP, volatility and max win as Relax Gaming publishes them, checked on November 3, 2026. A casino may run a lower RTP setting: check the game’s info screen.

Game page at Relax Gaming
8

Snake Arena

High volatility

6.4/10Spin Score
  • RTP 96.25% (lowest setting 90%)
  • Max win 2,759x
  • Volatility: High
  • 5x5, 30 lines
  • Released Dec 2019
  • Bets 0.1–100

Last of the eight, and a weird one in a good way. Snake and knight symbols are wilds on a 5x5 grid, and in free spins the snake chases knights, growing and leaving wilds until it blocks itself. Random Wild Chase can turn whole reels wild in the base game. The max win is 2,758.8x per Relax, the lowest here by far. RTP 96.25%. Hit frequency isn't published.

How the score breaks down, and the fine print
  • Return to playerData · 40%7.8
  • Max winData · 15%5.0
  • Free spins roundEditors · 30%6.0
  • Base gameEditors · 15%5.0

What it is: A 5x5 slot where snake and knight symbols are wilds. Landing both starts free spins in which the snake chases knights across the grid.

Free spins round: In free spins a snake chases knights across the grid, growing as it eats them and leaving wilds, until it blocks itself.

Base game: The random Wild Chase feature can turn whole reels wild in the base game.

RTP, volatility and max win as Relax Gaming publishes them, checked on November 3, 2026. A casino may run a lower RTP setting: check the game’s info screen.

Game page at Relax Gaming

Demo buttons open the free-play version on the game studio’s own site: no deposit, no account. We are not paid for them. How we make money

What Relax Gaming is known for

Bonus rounds. The three Money Train games score 10 on the bonus factor, the maximum, and nothing else in our dataset does better. Hold-and-win respins with character symbols that act on each other are the house idea, and Relax keeps adding characters with each sequel.

The base games are the price. Five of the eight score 5 or lower on base game. You spend most spins waiting.

Max wins are huge: 49,998.9x to 150,000x on six games, with only Temple Tumble Megaways and Snake Arena below 10,000x. Volatility is high or very high across the board. There is no low-volatility Relax slot in our records.

Hit frequency sits around 19% to 28% where it's published. Most spins lose.

Relax's RTP settings: the 90% problem

Credit where it's due: Relax prints its lower settings on its own game pages. Most studios don't.

What it prints is not great news. Six of the eight games list a German RTP of 90%: Money Train 2, Money Train 3, Dead Man's Trail, Iron Bank, Temple Tumble Megaways and Snake Arena. Money Train 3 also lists a 94% alternative. Three games (Money Train 3, Money Train 4, Temple Tumble) have UK GameIDs ending in _92, which suggests a 92% UK version.

Here's the cost in plain terms. At 96.4%, the long-run average loss is 3.6% of everything you stake. At 90% it's 10%. Same game, same bonus round, close to three times the price.

Bought bonuses are a different number again. Slotcatalog lists 98% for the bought bonus on Money Train 2 and Dead Man's Trail, and 97% for Iron Bank's free spins or bought bonus. A higher RTP on a buy doesn't make it a good deal: you're paying 100x your stake per go for a round that's still negative on average.

Check the info screen before you play. Our RTP guide shows where to look.

Should you use the bonus buy?

I'd say no. Bonus buys on these games cost 70x (Snake Arena, per slotcatalog) to 500x (Money Train 3's persistent option). On a high-volatility game, one bought bonus can return a fraction of its price, and often does.

They aren't offered in the UK on Money Train 2, 3 and 4, Dead Man's Trail or Iron Bank. Elsewhere, availability depends on the market. Our bonus buy slots page goes through the maths.

How to pick a Relax slot

If you want the Money Cart, start with Money Train 2. It has the highest top RTP of the series at 96.4%, and the bonus is just as good.

Want something busier on ordinary spins? Hellcatraz or Temple Tumble Megaways. Both cascade, and Hellcatraz's mystery symbols fire constantly.

And set the budget before you open any of them. With hit rates near one in five and bonuses that can take a long time to land, a small balance can disappear before you see a single feature. That's normal for these games, not bad luck. Pick a stake small enough to last, and see our high volatility page for how these games behave.

Frequently asked questions

What is the best Relax Gaming slot?

Money Train 2, with a Spin Score of 8.5. Its Money Cart bonus scores the maximum on our bonus factor and Relax lists a 50,000x max win.

Which Money Train game is best?

In our table: Money Train 2 (8.5), then Money Train 4 (8.3), then Money Train 3 (8.2). Money Train 4 has the highest max win at 150,000x, but Money Train 2 has the higher top RTP: 96.4% against 96.1% for both sequels, per slotcatalog.

What RTP does Money Train 2 have?

Slotcatalog lists 96.4%. Relax's own page lists a 90% version for Germany, and slotcatalog says the bought bonus runs at 98%. Check the game's info screen at your casino.

Is Money Train 4 available in the UK?

Relax's page lists a UK GameID, moneytrain4_92, which suggests a 92% UK version. The bonus buy isn't available to UK players.

Who founded Relax Gaming?

Relax's about page says it was founded by Patrik Österåker and Jani Tekoniemi. The same page marks a 15th anniversary with more than 300 employees.

Further reading

Official sources

  1. Relax Gaming: About – Founders, company history, 300+ employees at 15th anniversary, checked November 3, 2026
  2. Relax Gaming: Money Train 2 – 50,000x max win, German RTP 90%, Money Cart features, checked November 3, 2026
  3. Relax Gaming: Money Train 4 – 150,000x max win, scatter pays, UK GameID moneytrain4_92, checked November 3, 2026
  4. Relax Gaming: Money Train 3 – 100,000x max win, German RTP 90%, alternative RTP 94%, four bonus buys, checked November 3, 2026
  5. Relax Gaming: Hellcatraz – 46,656 ways, mystery symbols, 2,000-key Super Free Spins, checked November 3, 2026
  6. Relax Gaming: Dead Man's Trail – 50,000x max win, German RTP 90%, Trail Bonus, checked November 3, 2026
  7. Relax Gaming: Iron Bank – 49,998.9x max win, German RTP 90%, three free spins modes, checked November 3, 2026
  8. Relax Gaming: Temple Tumble – 46,656 ways, German RTP 90%, three free spins paths, checked November 3, 2026
  9. Relax Gaming: Snake Arena – 96.25% RTP, 2,758.8x max win, German RTP 90%, checked November 3, 2026
  10. Slotcatalog: Money Train 2 – Aggregator: RTP 96.4%, hit frequency 19.55, 100x bonus buy, checked November 3, 2026
  11. Slotcatalog: Money Train 4 – Aggregator: RTP 96.1%, 5/5 volatility on Relax's scale, checked November 3, 2026
  12. Slotcatalog: Money Train 3 – Aggregator: RTP 96.1%, 5/5 volatility, checked November 3, 2026
  13. Slotcatalog: Hellcatraz – Aggregator: RTP by mode, 51,840x max win, checked November 3, 2026
  14. Slotcatalog: Dead Man's Trail – Aggregator: RTP 96.29%, hit frequency 19.15, checked November 3, 2026
  15. Slotcatalog: Iron Bank – Aggregator: RTP 96.2%, hit frequency 28.49, checked November 3, 2026
  16. Slotcatalog: Temple Tumble – Aggregator: RTP 96.25%, 7,767x max win, checked November 3, 2026
  17. Slotcatalog: Snake Arena – Aggregator: high variance, 30 lines, checked November 3, 2026