What’s in the Vault™

In the heart of a neon-lit city, deep beneath a sleek banking tower, sits the Grand Vault — and inside it? Nobody knows. But that’s what What’s in the Vault™ is all about: cracking open layers of secrets for a shot at a 5,000x jackpot.

Developed by Games Global, this heist-themed release is built around a slick 5x4 grid with 1,024 ways to win, sticky Mystery Symbols, and a Money in the Bank mechanic that can trigger cash prizes or static jackpots. Every spin could reveal something valuable — sometimes a match, sometimes a multiplier, and sometimes a surprise stash of cash.

📊 What’s in the Vault™ Game Overview & Stats

What’s in the Vault™ blends classic mechanics with a few smart upgrades to keep things tense but rewarding. It leans heavily into a feature-driven rhythm, meaning base game spins often serve to build momentum — not just wins.

Here’s the breakdown:

• Release Date: May 2025
• Developer: Games Global
• Reels / Rows: 5 x 4
• Ways to Win: 1,024 (way pays)
• Volatility: High
• Hit Frequency: ~24.5% (1 in 4 spins)
• Max Win: 5,000x
• Min / Max Bet: €0.20 / €50
• Default Bet: €1
• RTP Options: 94.00%, 92.20%, 86.70%
• Key Features:
  • Sticky Mystery Symbols
  • Free Spins with multipliers
  • Cash prize Mystery symbols
  • Static jackpots (Mini to Mega)
  • +1 Spin extensions

Languages and mobile support are fully covered, with the game available in 30+ languages and optimized for 1280x720 screen resolution across all devices.

This is a game designed for experienced players looking for mystery mechanics and high-risk, high-reward gameplay. The payout system is tuned for big spikes — not steady hits — which means patience is part of the playbook.

🎮 Core Gameplay

What’s in the Vault™ is a slot that rewards timing, patience, and attention to its Mystery mechanics. Spins play out on a classic 5x4 layout with 1,024 ways to win, but this isn’t about matching symbols alone — it’s about unlocking the vault hidden beneath the reels.

The standout mechanic here is the Mystery Symbol. These can land anywhere during the base game and Free Spins. When they appear, they all reveal the same symbol at once, creating potential for wide-screen hits. The big moment, though, comes when these symbols flip into the Money in the Bank icon. That’s when things shift into high gear.

💡 Every time you land two Free Spins symbols, even without triggering the bonus, your Free Spins multiplier increases. It begins at x1 and can reach x5, growing step by step the more near-misses you rack up. That meter doesn’t reset until you hit Free Spins, so every tease feels meaningful.

Once you land three Free Spins symbols — only possible on reels 1, 3, and 5 — you trigger the 8 Free Spins bonus. This is where the real chase begins. The Mystery Symbols now become sticky, locking in place and potentially triggering jackpot payouts on multiple spins in a row.

It’s a clean game loop with a few well-placed twists:

• Near-misses boost long-term value
• Sticky features fuel momentum
• Every Mystery Symbol could become a prize vault

💥 Bonus Features

There are three core bonus mechanics in What’s in the Vault™. Each one builds on the others, and they all revolve around unlocking value — not just triggering spins.

🟨 Mystery Symbols

• Appear randomly in both Base and Bonus games
• Always flip into the same symbol per spin
• May reveal the Money in the Bank icon
• Cannot become Wilds or Free Spins symbols
• Key trigger for both combo wins and jackpot events

This is the foundational mechanic of the game. Whether you’re in a normal spin or Free Spins, these are what you want to see — and when they land in groups, the screen can light up fast.

💰 Money in the Bank

When Mystery Symbols turn into Money in the Bank icons, the vault opens:

• All Mystery frames spin again
• Possible results:
  • Cash prizes — 0.4x to 5.0x
  • Mini Jackpot = 10x
  • Minor Jackpot = 25x
  • Major Jackpot = 100x
  • Mega Jackpot = 5,000x
• Every visible value is added together
• Mega Jackpot can only hit once per round

The best part? You don’t have to fill the screen or trigger special bonus spins. These vault prizes can happen at any moment — even during a quiet spin — as long as you land the Mystery flip.

🔁 Free Spins with Sticky Mystery Symbols

Triggered by 3 Free Spins symbols on reels 1, 3, and 5:

• Awards 8 Free Spins
• All Mystery Symbols that land become sticky
• Sticky symbols remain until the round ends
• Multiplier from base game applies (up to x5)
• +1 Spin symbol may add extra spins
• Multiplier doesn’t apply to jackpot prizes, only symbol wins

This is where strategy kicks in. The more sticky Mystery Symbols you land early in the bonus, the higher your chances of hitting big combos — or chaining Money in the Bank triggers across multiple spins.

📱 Paytable

🧠 How to Play It Smart

What’s in the Vault™ is not a game you rush. Its layered mechanics reward players who stick around, build their Free Spins multiplier, and understand when to lean in and when to pull back. Here’s how to play it with purpose:

• 1. Watch the Free Spins Multiplier
  This meter builds every time you land exactly two Free Spins symbols — even if you don’t trigger the bonus. The multiplier starts at x1 and can climb up to x5, unlocking at various collection milestones (3, 6, 9, etc.).
• 👉 Smart move: Let the meter build over time. Triggering Free Spins with x3–x5 makes a massive difference in total payout.
• 2. Play for the Mystery Chains
  Mystery Symbols are your best friend in this game. Whether in the base game or Free Spins, they drive most of your big wins — either through full-screen matches or vault-triggering Money in the Bank flips.
• 👉 Tip: If you see them landing often, stick with your session. The big flip is likely coming soon.
• 3. Don’t Chase the Mega Jackpot
  The 5,000x Mega is exciting, but the game is already high-volatility. Treat it like a rare bonus — not the main goal — and focus on building your multiplier and stacking sticky symbols during bonus rounds.

See here how to claim & wager bonuses

📍 Where Can You Play What’s in the Vault™

This game is easy to get into and rewarding the longer you stay. Here’s how to get started and make the most of each spin.

You can play it at:

• 🇬🇧 Licensed UK casino sites
• 🇨🇦 Canadian platforms, including Ontario-regulated sites
• 🇪🇺 European markets with regulated online gambling (like Sweden, Netherlands, Germany)
• 🇺🇸 U.S. states with legal iGaming (check for local availability)
• 🌐 Crypto casinos and sweepstake platforms

If you're after welcome bonuses, free spins, or bonus buy features, keep an eye on platforms like BestBonusList.com or your casino’s promotions tab. Since this is a high-profile 2025 release, it’ll likely get featured in launch events and tournaments as well.

🌀 Try the Demo First

Before you commit real money, the demo is your training ground. It shows you how the Mystery Symbols behave, how often the vault opens, and how long it might take to fill the multiplier meter.

Here’s what to test in the demo:

• 🔄 Mystery flip frequency — see how often they land and transform
• 📈 How fast the multiplier builds with 2-scatter hits
• 💥 Money in the Bank outcomes — test what kind of vault values are common
• 🔁 Sticky Mystery chaining in Free Spins
• ➕ How often +1 Spin symbols extend your bonus

Using demo mode helps you avoid the common mistake of quitting just before the Free Spins multiplier peaks or missing the rhythm of how features trigger. Learn the timing — then go live.

Play New Online Slots with Free Demos!

🎯 Similar Slots to Try

If you enjoyed What’s in the Vault™, here are a few other titles that scratch the same itch — whether it’s the vault-breaking tension, sticky mechanics, or jackpot suspense.

💼 Break da Bank Again™ Megaways – Games Global

A direct cousin to Vault, this one uses the Megaways engine with expanding reels, respins, and bonus buys. Same bank-heist vibe, but with faster pacing and a heavier focus on tumbling wins.

🔐 Vault Cracker™ – Red Tiger

A more traditional heist slot, focused on safe cracking and Bonus Vault spins. Simpler than Vault, but satisfying for quick, casual sessions with hold-and-win elements.

🧨 Big Bank Vault™ – Inspired Gaming

Light on features but heavy on Money Symbol collection. Offers a strong base game loop and locked symbols — good for players who want more frequent but modest payouts.

🎭 9 Masks of Fire™ – Gameburger

While thematically different, the frequent scatter pay mechanic and high hit rate offer similar volatility rhythm. Popular with players chasing fixed jackpots on a faster tempo.

If you’re looking for something more explosive or chaotic, consider:

• Money Train 4 – for aggressive bonus building
• Dead Canary – for cage-based grid mechanics
• Fire in the Hole 2 – for multi-layered vault logic with NLC madness

💬 Player Thoughts

Player feedback so far has leaned into the mechanical satisfaction of Mystery Symbols and vault reveals. There’s a clear appreciation for the multiplier build mechanic, but also some caution around the game’s high volatility.

“The multiplier build gives you something to play for even when you’re not hitting bonuses. I love that.”
— Stream chat user, BonusHuntTV

“It’s slick. The mystery symbols are generous. But you’re gonna feel it when the vault doesn’t open.”
— Reddit user /r/slotsandstuff

“Feels fair for a high-volatility slot. Base game doesn’t pay often, but when it does, it’s a pop.”
— Discord player review

“Free Spins with stickies is 🔥. Land two vault symbols and suddenly you’re sweating for 100x+.”
— Casino Twitch streamer

Overall, players who enjoy medium-term buildup, sticky features, and sudden jackpot shots tend to rate it highly. Casual spinners may find the base game slow without the vault triggers.

✅ Pros and ❌ Cons

✅ Pros:
✔ Sticky Mystery Symbols build strong synergy
✔ Vault feature offers real jackpot shots — no grind required
✔ Free Spins multiplier rewards persistence
✔ Max win of 5,000x with clean mechanics
✔ Balanced blend of risk and reward for experienced players

❌ Cons:
✖ High volatility can lead to long dry patches
✖ Mega Jackpot is extremely rare
✖ Base game feels flat if Mystery Symbols don’t trigger
✖ Feature buy not available in all regions