Money Train 4, launched by Relax Gaming in September 2023, was met with high anticipation as the grand finale of the legendary slot series. Players and critics alike wondered whether the fourth instalment would live up to the reputation of its predecessors, particularly the wildly successful Money Train 2 and 3. With enhanced features, a futuristic visual theme, and extreme volatility, the game aims to raise the bar for online slots. But does it truly deliver on the hype?
The standout addition in Money Train 4 is the Persistent Necromancer, a bonus symbol that can trigger massive win chains by reactivating previously used special symbols. Combined with the persistent shapeshifter, sniper, and collector mechanics, this feature ensures each bonus round offers layered complexity and high potential rewards. These innovations reflect Relax Gaming’s commitment to depth and variety.
Players can access the feature buy menu, offering four purchase options ranging from standard bonus buys to the most volatile versions with guaranteed persistent symbols. The addition of Turbo Mode also enhances the fast-paced experience, catering to high-risk players seeking immediate results. These mechanics build upon the series’ legacy while adding a fresh twist to maintain replayability.
Another notable change is the increased reel grid from 5×4 to 6×4, allowing for more potential win combinations and symbol variety. The game’s math model supports a theoretical maximum win of 150,000x the stake — the highest in the series. This dramatic increase in winning capacity sets a new standard not just for the franchise but for the high-volatility slot genre as a whole.
Departing from the Western-themed aesthetic of previous entries, Money Train 4 embraces a dystopian, cyberpunk-inspired setting. The dark cityscape, gritty character design, and moody colour palette create a vivid, cinematic experience. This futuristic shift breathes new life into the franchise, allowing the series to evolve thematically without losing its identity.
The background music and sound effects play a key role in maintaining tension throughout spins and bonus rounds. Mechanical clanks, electronic pulses, and synth-heavy melodies contribute to a high-stakes atmosphere, heightening the player’s engagement. Audio cues are finely tuned to complement gameplay phases, particularly during high-value symbol drops and retrigger sequences.
In terms of animation, Relax Gaming has improved fluidity and symbol transitions. The game’s characters, including the classic Payer, Collector, and Sniper, now feature enhanced motion graphics that give the slot a polished, AAA-style visual finish. This attention to detail signals Relax’s move toward a more immersive and modernised slot gaming experience.
Money Train 4 offers players a selection of RTP models depending on jurisdiction and operator — with standard settings at 96.10%, 94.00%, and 92.00%. While this flexibility allows compliance across various regulated markets, players should always verify the RTP available on their platform of choice. The default 96.10% option maintains fairness while keeping the house edge competitive.
The slot remains extremely volatile, meaning sessions can be dry, but the potential for enormous wins is undeniable. This volatility profile is ideal for seasoned players familiar with managing bankrolls in high-risk games. It also means that the game caters more to thrill-seekers than casual slot fans.
Relax Gaming has also included a volatility rating interface within the info panel, which clearly explains the game’s risk model and winning potential. This move towards transparency is aligned with modern responsible gaming practices and helps players make informed decisions before committing their stakes.
Money Train 4 was clearly developed with high-roller and experienced slot players in mind. The complex mechanics, multiple layers of bonus interaction, and extreme win potential appeal to users who understand the intricacies of slot features and are comfortable with variance-heavy gameplay. It’s a power user’s slot through and through.
However, the visual appeal and cinematic quality may also attract newcomers who are intrigued by its aesthetic and reputation. While the learning curve can be steep, the game includes tutorial segments in the info panel to ease onboarding for less experienced users. This hybrid appeal ensures that it remains accessible while still delivering complexity where needed.
Community response has been largely positive, with forums like CasinoGrounds and SlotBeats filled with screenshots of colossal wins and strategy discussions. The game has even made appearances in Twitch slot streams and YouTube channels, further fuelling its visibility within the global slot-playing community.
Money Train 4 is built using Relax Gaming’s advanced HTML5 framework, ensuring full compatibility with modern smartphones and tablets. Whether playing on Android or iOS, users experience seamless transitions, responsive touch controls, and high-resolution graphics without lag. The mobile version retains all features found in the desktop variant, including feature buys and autoplay customisation.
The slot has been tested across major browsers including Chrome, Safari, and Firefox, where it runs smoothly without technical issues. Load times are fast, even on 4G connections, making it suitable for gaming on the go. Additionally, the inclusion of Turbo Mode allows mobile users to condense session lengths without compromising the excitement.
Relax Gaming has ensured that accessibility features, such as colour-blind friendly modes and adjustable sound settings, are also included. This attention to usability across a wide player base contributes to the title’s positive reception and robust performance metrics across operator platforms.
As of February 2025, Money Train 4 has solidified itself as a worthy conclusion to the iconic series. With innovative mechanics, upgraded visuals, and sky-high winning potential, it appeals to serious players seeking a robust, rewarding experience. The title showcases how far Relax Gaming has come in slot design and technological execution.
Feedback from the online casino community suggests that the game meets — and in some cases exceeds — expectations. Its retention rate remains high across aggregator platforms, and major operators continue to promote it via featured slots and promotional tournaments. This longevity is a testament to its design quality and replay value.
While not suitable for everyone due to its intense volatility, Money Train 4 has earned its place in the top tier of modern video slots. For players chasing the ultimate slot thrill, it delivers precisely what’s promised — high-stakes, high-impact gaming with a futuristic twist.