
Money Train 4 Slot Demo
Money Train 4 slot is the epic final chapter in Relax Gaming’s iconic slot series, combining extreme volatility with a max win potential of 150,000x your stake. This slot boasts a solid 96.10% RTP and innovative mechanics alongside fan-favourite symbols like Persistent Collectors and Snipers.
Read our full Money Train 4 review to explore its unique features, gameplay mechanics and futuristic dystopian backdrop. Plus, try the demo version below to experience the thrill of this slot first-hand!
Our Honest Verdict – Feature Score: 9.1
Released in 2023, Money Train 4 is the explosive finale of Relax Gaming’s hit series. I’m pleased to report that it’s taken everything fans loved from the earlier titles and has cranked it up to the max. Packed with extreme volatility and a staggering 150,000x max win potential, the Relax team clearly wanted this slot franchise to go out in style!
From the innovative Persistent Shapeshifter feature to its cinematic, dystopian visuals, I’d say that Money Train 4 slot is much more than just a sequel. It’s a full-throttle slot experience in its own right. I’d recommend this slot to adrenaline-seekers and seasoned players who thrive on high-risk, high-reward gameplay.
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Feature Score
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RTP
96.1%
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Volatility
High
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Progressive jackpot
–
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Min. BET
£0.1
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Max. BET
£6
The Top 5 Reasons to Play Money Train 4 Slot
- Huge Win Potential: With a jaw-dropping max payout of 150,000x your bet, it’s one of the most lucrative online slots out there.
- Random Respins: During the base game, a random respin can trigger at the end of any of your spins. Only multipliers or a chosen symbol will appear, quickly adding up to some welcome win potential.
- Epic Bonus Round: With a trainload of modifiers, the Money Cart bonus round is a seat-of-your-pants ride with some huge potential outcomes.
- Stunning Theme: Relax Gaming nails the futuristic vibe with exceptional graphics and soundscapes that transport you to a post-apocalyptic world of robots and bandits.
- High-Stakes Antics: Rate 10 out of 10 by Relax Gaming, this slot’s extreme volatility means fewer but larger wins, making it ideal if you have the budget and patience to take it on!

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How to Play Money Train 4 Slot
If you’re keen to jump into the future and join the ride, here’s how. Follow these steps to start playing Money Train 4 with zero experience:
Select Your Bet
Use the plus and minus symbols either side of the Bet Amount indicator to change it. adjust it between £0.10 and £6 to suit your gaming budget.
Start Spinning
Tap the spin button to send the slot’s six reels into motion.
Bag Some Wins
Land at least eight identical high-pay symbols, or 10 identical low-pay symbols, anywhere on the reels to form a win.
Trigger the Features
Land special symbols to start the game’s special features for some even bigger win potential!
Respins Feature
Triggered randomly at the end of any spin in the base game, this feature selects the symbol most present on the reels to be sticky. The feature triggers with three spins and you can land either multipliers or the chosen symbol.
Any multipliers appearing will reset the spins to three. Once no new symbols land, the feature ends, all the multipliers are added together and applied to your win total.

Money Cart Bonus Round
Land three or more Bonus scatter symbols, or the persistent ‘gold’ symbols’, anywhere on the reels to trigger the slot’s epic bonus feature. Any persistent symbol triggering the feature acts before the first spin occurs.
The round kicks off with three Free Spins and an initial 6×4 size grid. The multiplier bet value is determined by symbols that triggered the feature, so the higher the value, the better.
If you manage to fill up a row with symbols, it will unlock a new row, and any symbols on it will act. You can unlock up to four new rows to expand the grid per bonus round.
There’s a trainload of 22 modifier symbols to land during the Money Cart bonus round, as you’d expect. Here’s what each one can do for you:
- Bonus Symbols: These symbols reveal a random value ranging between 1x and 10x your bet.
- Collector: Gathers the displayed values of all Bonus symbols on the reels and adds them to its own total.
- Persistent Collector: At the end of each spin, this feature collects all visible Bonus symbol values and adds them to its own. It excludes its own value from this collection.
- Adjacent Collector: Collects and combines the values of Bonus symbols located directly next to it.
- Persistent Adjacent Collector: Each spin, this feature accumulates the values of adjacent Bonus symbols, adding them to its total at the end of every round.
- Payer: Unveils a value and shares it by adding that amount to all other visible symbols on the screen.
- Persistent Payer: At the end of each spin, it reveals a value and adds it to all visible symbols. This does not affect its own value.
- Adjacent Payer: Reveals a value and distributes it by adding to all Bonus symbols directly next to it.
- Persistent Adjacent Payer: Repeatedly adds its revealed value to all neighbouring Bonus symbols at the end of each spin.
- Sniper: Targets 3 to 8 Bonus symbols and doubles their values, with the potential to hit the same symbol multiple times.
- Persistent Sniper: Targets and doubles the values of 3 to 8 Bonus symbols at the end of every spin, potentially affecting the same symbol multiple times in each round.
- Collector Payer: Selects 3 to 5 symbols, gathers their values, and adds the combined amount to its total, then distributes this updated value back to the selected targets.
- Persistent Collector Payer: Repeats the Collector Payer’s function at the end of every spin, targeting and redistributing values to 3 to 5 symbols.
- Arms Dealer: Transforms 1 to 4 Bonus symbols into feature symbols. After the transformation, the newly created feature symbols execute their respective functions.
- Persistent Arms Dealer: Converts 1 Bonus symbol into a feature symbol at the end of each spin, with the new symbol performing its action after the conversion.
- Necromancer: Revives 2 to 7 previously used non-persistent feature symbols, allowing them to act again. Symbols can be revived more than once.
- Persistent Necromancer: Revives 1 to 7 non-persistent feature symbols at the end of every spin, repeatedly bringing them back into play for subsequent rounds.
- Persistent Shapeshifter: Adopts a new feature each spin, randomly transforming into a Collector, Payer, Sniper, Collector Payer, Arms Dealer, or Unlocker.
- Unlocker: Removes the barrier on a locked row, expanding the play area for potential rewards.
- Reset Plus: Increases the starting spin count by +1, giving players extra rounds to land features.
- Upgrader: Enhances 1 to 3 feature symbols by upgrading them to their Persistent versions, significantly boosting their impact.

Visuals and Theme
If you asked me to sum up the look and feel of Money Train 4 in a few words, I’d say guns, lots of guns! Relax Gaming has certainly gone full tilt with this theme for the final outing in the franchise. Building on the dystopian sci-fi theme we saw in Money Train 2, they seem determined quite literally to go out all guns blazing in this release!
The robot droid skulls, and their glowing eyes, give it a very Terminator 2 vibe. Maybe it’s best if we just call it steampunk meets Star Wars? Regardless, it’s a highly immersive theme, and when combined with the slot’s explosive soundscape, it drew me in.
My favourite moment is when I triggered the free spins round, and the colossal space train thing pulls away, dragging the reels behind it. In fact, the graphics are so good it can feel more like a movie than a slot at times.
RTP and Volatility
Money Train 4 arrives at the station with a 96.10% RTP. This is around the industry average for online slots, so there’s no shock factor here, but combined with the slot’s extreme volatility, it manages to work some true magic.
It’s good to see that the volatility of this game matches its look and feel, with a rating of 10/10 from the team at Relax Gaming. I can confirm that my real-world gameplay experience tallies up with the maximum rating. It certainly took a fair few spins to get any sizable wins coming my way at times.
If you have the budget management and staying power, then you’ll just about handle the ride in MoneyTrain 4. If you’re not willing to board this slot for the long haul, then I’d say this is one to avoid, despite the enticing max potential of 150,000x your bet.
Mobile Compatibility
I was pleased to find that Money Train 4 still packed a punch, regardless of screen size. I gave it a spin using my old iPhone 13, and the graphics and sounds appeared just as vibrant as they do on a laptop or monitor.
Relax Gaming is a pro when it comes to producing responsive slots, and this one is certainly mobile-optimised. The game’s controls flip over to the right of the reels when playing on a mobile or tablet. I found it pretty easy to tap the big spin button with my right thumb for some one-handed play on the go.
Despite the highly detailed animations and cutscenes, Money Train 4 didn’t miss a beat during testing on my iOS devices. I’d be confident you can have a top-tier mobile gaming experience from wherever you happen to be. You only need a decent data connection, and you can get to work chasing those wins!
Where to Play Money Train 4 Slot
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Our Final Thoughts
Money Train 4 is an absolute powerhouse of a slot, combining the futuristic, dystopian theme of MT3 with some fresh gameplay mechanics. The massive 150,000x max win potential and a variety of dynamic features certainly ensure that Relax Gaming’s iconic series goes out with a bang!
I’d recommend this slot if you’re a high-roller or simply an experienced player who enjoys volatile gameplay and you’re ready to chase epic payouts. Casual players might find the extreme volatility intimidating, but our Money Train 4 demo above gives you a risk-free way to get a feel for the action!