| Number of Reels | 6 Reels |
| Paylines | 4096 Paylines |
| Graphics and Animation | 3D Graphics |
| Sound | Latin heist groove, vault SFX |
Relax Gaming's Iron Bank slot drops you straight into a sun-soaked Cuban vault robbery masterminded by a jaguar and a gang of unlikely criminals. This isn't your typical heist story—it's a community-built slot born from CasinoGrounds' player feedback, designed for streamers and high-stakes enthusiasts chasing explosive wins.
The twist? When you trigger the bonus, you pick your own danger level across three distinct free spins modes. Whether you want steady accumulation or white-knuckle multiplier chaos, the choice is yours. With a maximum win of 50,000x and volatility dialled to the max, Iron Bank rewards patience and nerve in equal measure.
| Provider | Relax Gaming |
| Launch Date | 28 October 2020 |
| Slot Type | Video Slot |
| Genre / Thematics | Cuban heist, jaguar mastermind |
| RTP (Return to Player) | 96.20% |
| Volatility | High |
| Minimum Bet | $0.10 |
| Maximum Bet | $20 |
| Maximum Bet | 40,000x |
| Number of Reels | 6 Reels |
| Paylines | 4096 Paylines |
| Graphics and Animation | 3D Graphics |
| Sound | Latin heist groove, vault SFX |
| Jackpot | No |
| Progressive Jackpot | No |
| Betting per Line | 4096 paylines |
| Betting Limits | $0.10 – $20 |
| Multicurrency Support | Yes |
| Fun Play Mode | Yes |
| Game Speed | Standard |
| Additional Features | Free Spins, Multipliers, Mystery Symbols, Expanding Wilds |
| Game Mechanics | 4096 ways to win, cascading reels. Adjacent ways; pick 1 of 3 FS modes; wild/multiplier upgrades depending on mode |
| Types of Symbols (Wild, Scatter, etc.) | Stacked/expanding Wild; Scatter (BONUS); highs: bull, rum, cigar box, banana, plant; lows 10–A |
| Number of Symbols | 10–A set + 5 premiums + specials |
| Autospin | Yes |
| Maximum Multiplier | Wild multipliers by mode; overall potential ≈49,999× |
| Bonus Frequency | Medium; improved via Bonus Buy |
| Symbols Frequency | ≈28.49% (theoretical) |
| Betting Function | No (no classic gamble) |
| Bonus Game Variations | 3 pickable FS modes, different volatilities |
| Compatibility | Windows, Android, macOS, iOS |
| Platforms | HTML5, Android, iOS, Windows, MacOS |
| Demo Version | Yes |
| Market Availability | Global |
| Regional Adaptations | Supports multiple languages and currencies |
Iron Bank operates on a 6×4 grid, offering 4,096 ways to win, with matching symbols appearing from left to right across adjacent reels. The base RTP sits at 96.20%, climbing to 97% when you activate the Feature Buy. That extra 0.8% might sound modest, but over thousands of spins it shaves the house edge meaningfully—from 3.8% down to 3%. High volatility means you'll face dry spells punctuated by sudden surges; the 28.49% hit frequency translates to roughly one winning spin every 3.5 attempts, though most base-game hits stay below your stake.
Bet sizing ranges from ₹8 to ₹1,600 (approximately $0.10–$20), accommodating both cautious players and high rollers. The headline figure is the 49,998.9x maximum win—nearly identical to Money Train 2's 50,000x ceiling and light-years ahead of most mid-tier slots. Always check the paytable in-game before playing; some operators configure lower RTP variants down to 94%, which doubles the house edge and dramatically alters your long-term expectation.

Understanding potential outcomes in the INR context helps calibrate expectations:
These figures represent the mathematical ceiling achieved under perfect conditions during the most explosive bonus sequences. Real sessions cluster far below; typical strong bonuses land between 50x–500x, with 1,000x+ outcomes occurring rarely. Treat the Iron Bank max win as the aspirational peak, not a regular expectation.
Iron Bank's 4,096-way engine pays for three or more matching symbols landing on consecutive reels from left to right, position-agnostic. This generates significantly more winning combinations than fixed paylines, but variance remains high due to payout structure weighting. Premium symbols deliver the bulk of value, while low-pays fill gaps between features.
The Bonus Vault tops the paytable, awarding multipliers that scale aggressively: 20x for four-of-a-kind, 200x for five, and a massive 2,000x for six symbols. Secondary premiums include the Bull (50x max), Vase (10x), Banana (4x), Whiskey Bottle (3x), and Cigar Box (2x). Card symbols (10–A) function as low-pays, contributing small wins that maintain the 28.49% hit frequency without eating into big-win potential.
The Jaguar Wild substitutes for all regular symbols across all reels, appearing as both single tiles and full-reel expansions with embedded multipliers. When multiple wild multipliers apply to the same win, they multiply each other—two 5x wilds create 25x, not 10x. This multiplicative stacking is the engine behind Iron Bank's four-figure base-game hits.
Scatter symbols do double duty: trigger free spins at 3+, but also award instant payouts at higher counts. Four scatters pay 20x stake, five pay 200x, and six deliver 2,000x—matching the top symbol's max multiplier. These instant awards hit before you even choose your bonus mode, front-loading value on lucky triggers.
| Symbol | Type | 3 of a Kind | 4 of a Kind | 5 of a Kind | 6 of a Kind | ₹100 Bet (6oak) | ₹500 Bet (6oak) |
| Bonus Vault | Premium | — | 20x | 200x | 2,000x | ₹200,000 | ₹1,000,000 |
| Bull | Premium | 1x | 3x | 10x | 50x | ₹5,000 | ₹25,000 |
| Vase | Mid | 0.5x | 1x | 3x | 10x | ₹1,000 | ₹5,000 |
| Banana | Mid | 0.4x | 1x | 2.5x | 4x | ₹400 | ₹2,000 |
| Whiskey Bottle | Mid | 0.3x | 0.8x | 2x | 3x | ₹300 | ₹1,500 |
| Cigar Box | Mid | 0.3x | 0.7x | 1.5x | 2x | ₹200 | ₹1,000 |
| Wild (Jaguar) | Wild | — | — | — | — | Substitutes | Substitutes |
Note: Outputs are stake-multiplied; actual INR depends on bet size and currency conversion rates.
Landing three or more scatters anywhere in view opens the bonus selection menu, where you choose between three mechanically distinct free spins rounds. Each mode targets a different volatility tolerance, letting you match the feature to your session goals or bankroll depth. This player-controlled variance is rare in slots and accounts for Iron Bank's popularity among streamers who need content variety.
Before diving into modes, note the 100x Feature Buy option, where available (banned in the UK, restricted in other markets). Paying 100x your current stake skips straight to the selection menu with the improved 97% RTP. At ₹100/spin, that's a ₹10,000 upfront cost; at ₹500/spin, ₹50,000. The Feature Buy doesn't increase win probability—it simply accelerates access and marginally reduces long-term house edge.
Before scatters land organically, three features randomly activate during standard spins:
These randomizers keep the base game from feeling completely dead between bonuses, though you'll still endure long stretches where nothing significant lands.
The conservative choice awards 8 free spins with one randomly selected symbol becoming "sticky" across reels 2–6. Every time that symbol lands, it locks in place for the remainder of the feature. Filling an entire reel with sticky symbols grants +1 additional spin.
This mode builds gradually. Early spins might place only a few sticky symbols, but each locked position increases future win probability. If the selected symbol is a premium (Vault, Bull), a nearly full grid by spin 6–8 can produce several hundred times the stake through overlapping ways-to-win.
Best for: Players seeking controlled variance, those with limited session bankrolls (100x–150x bet), or testing Iron Bank's mechanics, risk-averse.

The highest-variance mode delivers 10 free spins with reels 3 and 4 marked as "expanding wild zones." When a wild lands on either center reel, it expands vertically and locks, triggering an automatic re-spin. Every consecutive winning spin increments the wild's multiplier by +1x and awards another re-spin.
The killer mechanic: when both reels 3 and 4 hold expanding wilds during the same win, their multipliers multiply each other. A 7x wild on reel 3 × 5x wild on reel 4 = 35x total multiplier applied to the win. Consecutive winning re-spins can push individual wild multipliers beyond 20x, creating potential for four-figure multipliers if both reels cooperate.
This mode swings wildly. You'll either exit with under 20x total or hit a streak that delivers 1,000x+. No middle ground. Perfect for streamers chasing highlight reels or players with deep bankrolls hunting the Iron Bank max win.
The middle path awards 12 free spins with a meter-based progression system. Coconut crates appear on reels 2–5; collecting 2 crates on any single reel increases that reel's wild multiplier by +1x. Wild multipliers stack cumulatively (2x, then 3x, then 4x, etc.) and apply whenever a wild lands on that reel during a win.
Filling a reel's meter completely awards +3 additional free spins, extending the feature and giving more time for crate collection. Unlike Expanding Re-Spin mode, these wild multipliers don't multiply each other—they apply independently per reel. However, if you build 5x on reel 2, 7x on reel 3, and 4x on reel 4, a win touching all three reels applies 5x + 7x + 4x = 16x total—not 5×7×4, which would be 140x.
This mode suits players who want predictability and pacing. You can track meter progress, anticipate extensions, and plan for gradual multiplier escalation. Less explosive than Expanding Re-Spins but far more consistent than Sticky Mysteries.
Landing six scatters already delivers a life-changing hit before you even spin the bonus. Combined with a strong feature, a 6-scatter trigger can approach 5,000x+ total session outcome.
Paying 100x stake for instant bonus access increases RTP from 96.20% to 97%, shaving 0.8 percentage points off the house edge. Over 1,000 Feature Buys at ₹100 stake (₹10,000 each, ₹10 million total), the improved RTP theoretically returns ₹9.7 million vs ₹9.62 million playing naturally—a ₹80,000 difference. That ₹80,000 gain assumes perfect RTP convergence over massive sample sizes; short-term results swing violently.
When the Feature Buy Makes Sense:
When to Avoid:
At ₹100/spin, a single Feature Buy costs ₹10,000. Budget for at least 3–5 buys (₹30,000–₹50,000) to sample outcomes meaningfully. A single buy might return 15x (₹1,500), wiping ₹8,500. The next could hit 300x (₹30,000), putting you ahead ₹21,500. Iron Bank's high volatility amplifies Feature Buy variance exponentially.

Initial Setup:
Core Controls:
Reading the Grid:
High volatility demands a disciplined bankroll structure. Allocate 100–200x your chosen bet size as a minimum session budget. Below this threshold, variance will likely exhaust funds before reaching a meaningful bonus or base-game streak.
Tiered Bankroll Examples:
Bonuses trigger approximately once every 100–150 spins organically. Plan for 200+ spins per session to hit at least one feature naturally. Shorter sessions (50–100 spins) risk ending without triggering anything, leaving you with only small base-game wins or losses.
Mode Selection Advice:
Feature Buy Strategy: If buying, rotate through all three modes across multiple purchases to compare outcomes. Don't commit to 5+ consecutive buys of Expanding Re-Spins hoping for lightning—you'll burn bankroll faster than results arrive. Mix modes to balance variance and maintain high engagement.
Contextualizing Iron Bank within Relax's portfolio clarifies its competitive position and helps you choose the right slot for your goals.
| Game | Provider | Release | RTP | Volatility | Max Win | Grid | Ways/Lines | Core Hook |
| Iron Bank | Relax Gaming | Nov 2020 | 96.20% (97% buy) | High | 49,998.9x | 6×4 | 4,096 ways | Three selectable free spins modes with multiplicative wilds |
| Money Train 2 | Relax Gaming | Sep 2020 | 96.4% | Very High | 50,000x | 5×4 | 40 lines | Persistent symbol bonus and collectors |
| Beast Mode | Relax Gaming | Feb 2022 | 96.32% | Very High | 25,000x | 6×4 | 4,096 ways | Three-mode picks, retro theme |
Iron Bank sits between Money Train 2's slightly higher RTP and Beast Mode's 6×4 layout familiarity. The 49,998.9x ceiling nearly matches Money Train 2's 50,000x, while crushing Beast Mode's 25,000x. The defining advantage: player-controlled volatility through mode selection. Money Train 2 locks you into one feature style; Iron Bank lets you adjust risk per trigger based on session performance or mood.
If you prefer single-bonus depth and collector mechanics, Money Train 2 edges ahead. If you want maximum-win-chasing flexibility and agency over variance, Iron Bank wins. Beast Mode's retro aesthetic and moderate max win make it the "fun" option; Iron Bank is the serious heist.
Iron Bank appears at most Relax Gaming partner casinos serving Indian players through international licenses (Curacao, Malta, MGA). Access typically requires:
Look for platforms offering Iron Bank demo access without registration. Most Relax Gaming casinos provide free-play mode replicating the full game—identical RTP, features, and volatility—letting you burn through 500+ spins to experience all three bonus modes and gauge fit before risking funds.
Playing demo mode for at least 500 spins is non-negotiable before real-money sessions. High-volatility slots like Iron Bank distort perceptions over short samples; 50–100 demo spins might land a 1,000x bonus, creating false confidence, or produce nothing, scaring you off prematurely.
Demo Testing Goals:
Expect the base game to feel grindy. Most spins return nothing or small fractions of the stake. Full-reel wilds with strong multipliers (7x+) appear roughly once every 40–60 spins. Bonuses trigger every 100–150 spins organically. These are averages; actual results swing violently.
After 500+ demo spins, you'll have realistic expectations. If demo bonuses average 80x–120x and you're betting ₹100 real money, expect ₹8,000–₹12,000 per bonus on average, with occasional 300x+ outliers and frequent 20x–40x disappointments. The Iron Bank demo won't simulate actual money emotions, but it calibrates mathematical understanding.
Iron Bank runs at 96.20% RTP by default and rises to 97% with the 100x Feature Buy. Volatility is high, meaning fewer but larger wins. The 28.49% hit frequency averages one winning spin every 3–4 attempts, though most base-game wins stay below your stake. Expect long stretches without meaningful returns, punctuated by sudden, large hits during bonus rounds or full-reel wild sequences.
Play responsibly. Only over 18 years old.