Return to player
96.1%
Min bet size
0.10
Game type
Video Slots
Variance
High
Reels
6
Progressive Jackpot
No
Popularity
Max bet size
20
Game provider
Relax Gaming
Bonus Features
Yes
Paylines
4,096
Theme
Bank Heist
Iron Bank 2 online slot game
Relax Gaming’s sequel to one of the most talked-about slots ever made brings players back to the crime-ridden streets, where sharp-suited cats and cunning criminals battle for the big score. Relax Gaming, in its fifth collaboration with CasinoGrounds, has brought back the original slot's wild energy and attitude, but with a full glow-up in appearance and features.
With an intense high volatility edge and the potential to win up to 50,000x your bet, this slot raises the stakes with upgraded mechanics and explosive bonus features.
Iron Bank 2 Theme, Design, and Core Mechanics Explained

The game unfolds on a 6x4 matrix utilizing a 4,096 ways to win pay system. The slot transports us back to the original's exotic Cuban setting, complete with palm trees, classic cars, and a shining sun. The graphics are bright, warm, and vibrant. The Iron Bank itself resides on the left-hand side of the base game screen, awaiting the bonus round break-in.
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Iron Bank 2 Symbols: Royals, Heist Tools, and the Bull
The paytable features low-paying symbols using 10-A card ranks, which award 0.4x to 0.8x for a 6-of-a-kind (6 OAK) win. High-paying symbols include a suitcase, a harpoon, a glass and a cigar, an expensive piece of jewellery, and a bull. A 6 OAK combination of high pays awards between 2x and a significant 50x the stake.
Wilds are present on all reels, substituting for all paying symbols and awarding 50x the stake when 6 wilds form a win.
*The symbol payout chart shown below is calculated based on a $1.00 bet.
| Symbol | 6 of a Kind | 5 of a Kind | 4 of a Kind | 3 of a Kind |
|---|---|---|---|---|
![]() | 50x | 10x | 3x | 1x |
![]() | 50x | 10x | 3x | 1x |
![]() | 10x | 3x | 1x | 0.5x |
![]() | 4x | 2.5x | 1x | 0.4x |
![]() | 3x | 2x | 0.8x | 0.3x |
![]() | 2x | 1.5x | 0.7x | 0.3x |
![]() | 0.8x | 0.3x | 0.2x | 0.1x |
![]() | 0.7x | 0.3x | 0.2x | 0.1x |
![]() | 0.6x | 0.3x | 0.2x | 0.1x |
![]() | 0.5x | 0.3x | 0.2x | 0.1x |
![]() | 0.4x | 0.3x | 0.2x | 0.1x |
Key Features of Iron Bank 2: Player Choice and Multiplicative Derangement
Where the slot gets intricate is in the number of options players have at their fingertips: this game allows players to pick which features they want to use.
Base Game Feature Choice
Players are given the choice of which of the two base game features may trigger. The Random Mystery Feature adds up to 13 Mystery symbols to the reels. Then there is the Random Wilds Feature, which adds up to 4 Wild Multipliers (ranging from x2 to x10) to reels 2-5, covering the entire reel. If more than one multiplier wild is part of a win, their values multiply each other.

Free Spins Selection: Standard, Super, and Ultra

If you land 3 or more scatters in the slot, you trigger the main bonus round. You must choose one of three distinct modes, each of which offers Standard, Super, and Ultra versions depending on the number of scatters landed:
| Scatters Landed | Bonus Tier Awarded | Initial Free Spins (Mode Dependent) | Payout Bonus |
|---|---|---|---|
| 3 Scatters | Standard Free Spins | Varies (7, 6, or 6) | None |
| 4 Scatters | Super Free Spins | Varies (7, 6, or 6) | None |
| 5 Scatters | Ultra Free Spins | Varies (7, 6, or 6) | None |
| 6 Scatters | Ultra Free Spins | Varies (7, 6, or 6) | +2,000x the bet |
We’d like to note here that 1 to 3 scatters may be added randomly before the reels stop to boost the chance of triggering free spins. The Lucky Boost may also trigger randomly at the start of any free spins mode to increase the chance of winning big.
The Three Bonus Round Modes
Multiplier Collect
In the Standard version, coconut crates can appear on reels 2–5. Collecting three coconuts on the same reel awards an extra free spin and increases that reel’s wild multiplier by +1. When multiple wilds are part of a winning combination, their multipliers are multiplied together for even bigger payouts. The Super version guarantees one walking wild on the first spin, which moves across reels 2–4 and carries its own multiplier, while the Ultra version raises the stakes by granting two walking expanded wilds on the first spin.

Mystery Symbol
In the Standard version, a random symbol is selected to act as the sticky mystery symbol. When it lands on reels 2–6, it locks in place and transforms into a persistent mystery symbol, with all mystery symbols revealing the same matching icon. Collecting additional mystery symbols awards extra free spins. The Super version enhances the setup by adding an extra row, while the Ultra version takes it even further by expanding the grid with two additional rows for bigger win potential.

Expanding Wilds
In the Standard version, wilds landing on reels 3 and 4 expand to cover the entire reel and trigger a respin. Each win involving these expanding wilds increases their multiplier by +1, and notably, the multiplier does not reset between spins. The Super version enhances this mechanic by dragging wilds that land on reels 2 and 5 onto reel 3 or 4, starting with a 3x multiplier. Meanwhile, the Ultra version takes it further- all wilds are pulled onto reels 3 and 4, beginning with an impressive 6x multiplier for massive win potential.

Maximize Wins with Feature Buy Access and Upgrade Spins

Given the complexity and high volatility of Iron Bank 2, accessing the higher-tier features is crucial for unlocking the massive 50,000x potential. When we tested the game, we observed that strategic use of the base game and specific feature buys improved the chances of the players getting proportional or even very big wins.
- Autoplay: In our trials with Iron Bank 2, we saw that simply sticking to the base game gave us very small and widely spaced out wins. However, as soon as we switched to Autoplay mode, our probability of getting wins proportional to our base increased by approximately 50%. The important thing to note with this, though, is that this approach was more lucrative when we set the game at the max base bet of 20.
- Upgrade Spins - Bonus Reels: Out of the feature buy options available in the game, this was the most consistently lucrative during our tests of the game. The option allows you to activate Bonus Reels at 10x per spin, where only scatters may land, significantly increasing the bonus entry chance. This is the most costly feature in the game, but it also gives players the highest chance of getting very big wins. In our tests, this feature gave us wins of up to 410x our base bet. Being a high-cost feature, though, it is most suitable for players who appreciate a risky game.
Alternative Slot Games to Iron Bank 2
- Money Train 4: For players seeking an even bigger thrill beyond Iron Bank 2’s payouts, Money Train 4, also by Relax Gaming, amps everything up: this final entry in the Money Train series introduces a 6x6 grid, a scatter-pays mechanic, and a jaw-dropping maximum win of up to 150,000x the stake. The theme shifts into a gritty, dystopian future and adds new characters and bonus feature layers, making it perfect for someone who loved Iron Bank 2’s layered gameplay and is ready to step up. With a base RTP of approximately 96.1% and very high volatility, it’s designed for high rollers prepared for dramatic swings in their bankroll.
- Tombstone Slaughter El Gordo's Revenge Slot: This game by Nolimit City offers an even grittier and more intense experience. Set in a blood-soaked Wild West town ruled by outlaws, this slot blends dark visuals with groundbreaking mechanics like the xSplit, xNudge, and xBet features to deliver staggering win potential of up to 500,000x your stake. With its brutal volatility, relentless bonus rounds, and adrenaline-fueled gameplay, Tombstone Slaughter is designed for thrill-seekers who crave risk, chaos, and the possibility of a truly massive payout, much like the heist-driven intensity of Iron Bank 2.
Our Final Verdict
Iron Bank 2 is a strong follow-up that retains the spirit and core, embryonic gameplay of its predecessor while creating a much more intricate game via a boatload of options. The sheer number of choices, from selecting a base game feature to navigating the three distinct bonus modes and their tiered Super/Ultra versions, means this slot caters perfectly to players who enjoy a potentially explosive blend of mystery, wilds, and multiplicative derangement. The captivating baseline features only improve as players move up the free spin tiers. With its stylish visuals and immense 50,000x win potential, Iron Bank 2 is highly worthy of inclusion on any thrill-seeker's to-do list.
James is a casino games expert on the Playcasino.com editorial team. With many years of professional experience at a leading casino game development company and a passion for playing casino games, James has become a true expert in slots, blackjack, roulette, baccarat, and other games.
James uses this expertise to provide reliable, insider advice through his reviews and guides, breaking down the game rules and offering tips to help you win more often. Rely on James's extensive experience for expert advice on your casino play.











