Money Train 4 Slot Review – Demo, RTP & Features

Money Train 4 is a high-volatility online slot from Relax Gaming and the fourth instalment in the popular Money Train series. It takes the franchise into a futuristic dystopian setting, replaces traditional paylines with a scatter pays system, and pushes the maximum win to a huge 150,000x the bet.

The game is played on a large 6×6 grid, where matching symbols can pay anywhere in view. Depending on the symbol, wins are formed by landing at least 8 or 10 matching symbols, with larger groups producing increasingly valuable payouts.

Visually, Money Train 4 slot game moves even further away from the original Wild West setting. The base game takes place in a dusty, futuristic environment filled with machinery and industrial structures, while the bonus round shifts into a darker atmosphere with rain, fire and heavy sci-fi styling.

Western influences are still present, but the overall theme is best described as futuristic Wild West / dystopian sci-fi.

The base game includes a Respin Feature, while the main attraction is once again the Money Cart Bonus Round. This time, the feature contains an enormous selection of modifiers, including Collectors, Payers, Snipers, Necromancers, Arms Dealers, Unlockers, Upgraders and numerous Persistent variants.

Money Train 4 has a standard RTP of 96.10%, a hit frequency of 20.14% and very high volatility rated 5/5. Bets range from €0.10 to €6 per spin, while the maximum possible win is 150,000x the stake.

Game Features

Money Train 4 combines scatter pays, a base-game Respin Feature, an expanding Money Cart Bonus and a huge collection of modifier symbols.

Scatter Pays

Unlike the earlier games in the series, Money Train 4 does not use traditional pay-lines. Instead, matching symbols can pay anywhere on the grid.

The two highest-value character symbols can create wins from 8 matching symbols, while most other symbols require at least 10 matching symbols.

Larger groups award bigger payouts, with the highest symbol combinations requiring up to 36 matching symbols. There is no traditional Wild symbol in Money Train 4.

Respin Feature

The Respin Feature can trigger at the end of a base-game spin. When activated, the symbol appearing most frequently on the grid is selected and becomes sticky.

A respin is then awarded, during which only:

• The selected symbol
• Multiplier symbols
• Blank positions

can appear.

New matching symbols become sticky and keep the feature running. Multiplier symbols do not remain on the grid, but their values are collected and added together. Once the respins end, the accumulated multiplier is applied to the final win.

Money Cart Bonus Round

Landing 3 or more Bonus symbols triggers the Money Cart Bonus Round. Persistent symbols can also substitute for Bonus symbols when triggering the feature.

The round begins on a 6×4 grid with the triggering symbols locked in place. Each triggering symbol reveals a multiplier value, and players receive 3 respins.

Whenever a new symbol lands, it becomes sticky and the respin counter resets to three. If a Persistent symbol helped trigger the bonus, its special action takes place before the first respin.

Expanding Rows

The bonus grid can expand substantially during the Money Cart Bonus. Whenever an entire row is filled with symbols, another row is unlocked.

Up to four additional rows can be opened, eventually expanding the playing area to a full 6×8 grid. Any feature symbols located in newly unlocked rows immediately activate their abilities.

Bonus Symbols

Regular Bonus symbols reveal multiplier values between 1x and 10x the bet. These values contribute directly towards the final Money Cart payout.

Collector

The Collector gathers all visible multiplier values and adds their combined total to its own value.

Persistent Collector

The Persistent Collector collects all visible values and adds them to itself at the end of the spin in which it lands and every subsequent spin. It does not collect its own current value.

Adjacent Collector

The Adjacent Collector gathers the values from symbols positioned directly around it and adds them to its own multiplier.

Persistent Adjacent Collector

The Persistent Adjacent Collector repeats the same adjacent collection at the end of the current spin and every following spin.

Payer

The Payer reveals a multiplier value and adds that amount to all other visible eligible symbols.

Persistent Payer

The Persistent Payer adds its value to the other visible symbols on the current spin and every subsequent spin. It does not add its value to itself.

Adjacent Payer

The Adjacent Payer adds its revealed multiplier to the symbols located directly around it.

Persistent Adjacent Payer

The Persistent Adjacent Payer repeats its payment to adjacent symbols on the current spin and every spin that follows.

Sniper

The Sniper selects between 3 and 8 Bonus symbols and doubles their values. The same symbol can potentially be targeted more than once.

Persistent Sniper

The Persistent Sniper repeats the Sniper action on the current spin and every subsequent spin.

Collector Payer

The Collector Payer selects between 3 and 5 target symbols. It collects their combined values and adds the total to its own multiplier before paying its updated value back to each selected target.

Persistent Collector Payer

The Persistent Collector Payer repeats this process at the end of every spin for the remainder of the bonus.

Arms Dealer

The Arms Dealer converts between 1 and 4 regular Bonus symbols into Feature symbols. Once converted, the new Feature symbols immediately activate their abilities.

Persistent Arms Dealer

The Persistent Arms Dealer converts one Bonus symbol into a Feature symbol at the end of the current spin and each following spin. The newly created Feature symbol then activates.

Necromancer

The Necromancer revives between 2 and 7 previously used non-persistent Feature symbols. The same symbol can be selected more than once, allowing powerful effects to activate repeatedly.

Persistent Necromancer

The Persistent Necromancer revives between 1 and 7 used non-persistent Feature symbols at the end of the current spin and every subsequent spin.

Persistent Shapeshifter

The Persistent Shapeshifter changes into another Feature symbol after every spin.

Possible transformations include:

• Collector
• Payer
• Sniper
• Collector Payer
• Arms Dealer
• Unlocker

Unlocker

The Unlocker immediately opens one currently locked row in the Money Cart Bonus. This can provide extra space for additional symbols and modifiers.

Reset Plus

The Reset Plus increases the starting respin value by +1. For example, the standard three-spin reset can increase to four.

Upgrader

The Upgrader converts between 1 and 3 Feature symbols into their Persistent versions. This can be particularly valuable because Persistent symbols continue performing their actions throughout the remainder of the feature.

Money Train 4 Bonus Buy

Where Bonus Buy features are permitted, Money Train 4 provides two options.

• 100x the bet – triggers the regular Money Cart Bonus.
• 500x the bet – triggers the Money Cart Bonus with one guaranteed Persistent symbol.

Using the Bonus Buy increases the theoretical RTP to approximately 96.50%. Availability depends on the casino and local regulations.