Money Train 4: the heist that keeps raising the stakes
Money Train 4 is Relax Gaming doing what it does best: a brutal, feature-led slot built around one famous bonus round. The grid got bigger, the cap got higher, and the variance stayed savage. It is a thrill if you understand the trade, and a fast way to empty a budget if you do not. Here is the honest version.
The mechanics
Money Train 4 plays on a six by six grid with no fixed paylines. You win when eight or more matching symbols land anywhere on the reels, so it is a pay-anywhere game rather than a left-to-right one. The base game is mostly a waiting room. The real product is the bonus, and a Respin feature in the base game can help nudge you toward it. If pay-anywhere grids are new to you, our slots guide covers the format in plain terms. The flagship game in the series, Money Train 3, works the same way, so if you liked that one you will feel at home here.
The Money Cart bonus
Everything points to the Money Cart round. Trigger it and the grid clears to a special board where coin symbols carry values and modifiers do the heavy lifting. There are around twenty different modifiers that can collect, multiply, copy and grow the coins on screen, and when several land together the round can snowball. That stacking is how the headline wins build. There is also a bonus buy option where it is permitted, letting you pay straight into the feature. Buying does not improve the long-term math, it just front-loads both the cost and the variance, so treat it with respect.
RTP, volatility and the ceiling
The default RTP is 96.10%, which is fair, but Relax also ships lower builds at around 94% and 90%, so the version your casino runs matters. Checking the figure in the game info screen is the same habit our RTP guide recommends for every title. Volatility is rated five out of five, the maximum, with a hit frequency near 20%, so roughly one spin in five lands anything at all. The maximum win is a huge 150,000x your stake. That number is the marketing, and it is extraordinarily rare. Read the volatility rules before you decide this is for you, because long dry spells are the price of that ceiling.
The verdict
Strengths: a genuinely exciting bonus round, a massive cap, and the polish you expect from Relax. Weaknesses: extreme variance, a flat base game, multiple RTP versions including poor ones, and a bonus buy that can drain a bankroll quickly. Money Train 4 is an entertainment product for players who already know they enjoy high-risk slots, not a strategy and not a plan. Set a budget first, try the demo or a free spins offer, and play it at a licensed casino from our reviews. For the studio behind it, see our Relax Gaming review. 18+, gamble responsibly.
Money Train 4 FAQ
What is the max win on money train 4?
It is 150,000x your stake. The round ends if a single result reaches that amount. It builds through the Money Cart bonus when several modifiers stack together, so it is a rare outcome rather than something to expect.
Is money train 4 high volatility?
Yes, it is rated five out of five, the highest on Relax Gaming's scale. The hit frequency is around 20%, so wins are infrequent and the swings are large. Only play it with a budget that can absorb long dry spells.
Should i buy the bonus on money train 4?
Bonus buy front-loads the cost and the variance without improving the long-term math. Only consider it where it is legal and within a limit you set in advance. The base game is slow, but buying does not make the game safer. 18+.