What's in the Vault? Slot – 96% RTP & 5,000x Max Win

Quick answer

What's in the Vault? is a Just For The Win slot (2025) with 96% RTP and a 5,000x max win. It uses 1,024 ways with free spins, fixed jackpots and multipliers. An official free demo is available. RTP can vary by casino.

Key specs

RTP: 96%
Max win: 5,000x
Grid: 5×4
Pays: 1,024 ways
Released: 19 May 2025
Bet range: $0.20–$50
Jackpot: Fixed

Not published by the provider: volatility

Top-rated casinos (check the game is available)

We haven't confirmed which partner carries this game.

Aurivo Casino100% up to $1,000 + 200 Free Spins30x bonus
Get 200 spins + 100% at Aurivo Casino (opens in new tab)
18+. New customers. Min dep $20. 30x bonus wagering. Max bet $5. 30 days. 200 spins on Book of Dead at $0.20. Credited in daily batches of 20 over 10 days. Full T&Cs apply.
Key terms
18+. New customers only. Min deposit $20. 30x bonus wagering requirement. Max bet $5 while wagering. Free spins on Book of Dead at $0.20 per spin. Spins credited in daily batches of 20 over 10 days. Offer valid 30 days. Full T&Cs apply. Please gamble responsibly.
Velmora150 No-Wager Free Spins Keep every winNo wagering
Claim 150 no-wager spins at Velmora (opens in new tab)
18+. New customers. Min dep $20. No wagering. 7 days. 150 spins on Big Bass Bonanza at $0.10. Full T&Cs apply.
Key terms
18+. New customers only. Min deposit $20. No wagering on winnings. Free spins on Big Bass Bonanza at $0.10 per spin. Offer valid 7 days. Full T&Cs apply. Please gamble responsibly.
Kronos Royale200% up to $2,000 + 10% weekly cashback40x bonus
Get 200% bonus at Kronos Royale (opens in new tab)
18+. New customers. Min dep $50. 40x bonus wagering. Max bet $10. 60 days. Full T&Cs apply.
Key terms
18+. New customers only. Min deposit $50. 40x bonus wagering requirement. Max bet $10 while wagering. Cashback: 10% of net casino losses each week (Monday to Sunday), paid as cash with no wagering every Monday, up to $500 a week. Offer valid 60 days. Full T&Cs apply. Please gamble responsibly.

Game availability varies by casino and country.

What does an hour cost?

Themes:

Gems & gold

Free demo Members

Try What's in the Vault? with play money before deciding whether to play for real. Official Just For The Win demos are free for GambGenius members.

Play the What's in the Vault? demoOfficial demo by Just For The Win · play money only · 18+Opens on Just For The Win's demo site

Member access — full guide unlocked

How to play What's in the Vault? (members only)

Instead of fixed lines, matching symbols on adjacent reels pay in any position, starting from the leftmost reel. The more matching symbols there are on each reel, the more ways the combination pays.

What's in the Vault? is played on a 5×4 grid with 1,024 ways.

Set your stake. Choose your total bet per spin between $0.20 and $50. Wins are paid as multiples of this stake.
Check the paytable. Open the game's info screen to see what each symbol pays and the exact rules for this version.
Spin. Each spin's result is decided by a certified random number generator, independent of previous spins.
Trigger the bonus. Land the required scatter symbols to start the free spins feature.

The full What's in the Vault? guide: how winnings work, 5 features and 2 strategy tips

What 96% RTP costs per $100 wagered: $4.00 on average
5 features explained: free spins, fixed jackpots, multipliers, mystery symbols, wild symbols
Strategy tips for What's in the Vault?

Free · no card · 18+ only

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How winnings work (members only)

What 96% RTP costs per $100 wagered, the 5,000x max win at a $1 stake

The top prize is capped at 5,000x your stake. On a $1 spin that is $5,000; on $0.20 it is $1,000. When the cap is reached the round usually ends immediately.

Multipliers are applied to wins as they land; in many games several multipliers add together or multiply each other, which is where the largest wins come from.

What 96% RTP means

Expected return = stake × 96%
Over $100 of total bets, the long-run average loss is $4.00

RTP is a long-run average across millions of spins. Any single session can finish far above or below it, especially on a volatile game.

Features explained (members only)

5 features explained: free spins, fixed jackpots, multipliers, mystery symbols and more

Free spins

A bonus round of spins played at no cost to your balance, usually triggered by landing three or more scatter symbols. Wins during the round are added to your balance, and many games let you retrigger extra spins.

Fixed jackpots

Jackpot prizes set at fixed multiples of your stake, such as Mini, Minor, Major and Grand.

Multipliers

Multipliers increase a win by a set factor, such as 2x or 10x. They can be attached to symbols, applied to a whole spin, or grow during a feature, and are a main driver of the biggest wins.

Mystery symbols

Special symbols that all reveal the same randomly chosen regular symbol, which can complete several wins at once.

Wild symbols

Wilds substitute for regular paying symbols to help complete winning combinations. They do not normally replace scatter or bonus symbols.

Strategy tips (members only)

Bonus wagering: at 96% RTP, clearing $1,000 of wagering costs about $40.00 on average. Check the bonus terms, as some casinos exclude specific games. Run your numbers in the wagering calculator.

1 more tip

Set limits before you spin. Decide your loss limit and session time in advance and stop when you reach either. No pattern or betting system changes the outcome of a spin.

More on this in slot RTP and volatility explained and bankroll management.

Questions

Frequently asked questions

Who makes What's in the Vault??

What's in the Vault? is developed by Just For The Win and was released in 2025.

What is the RTP of What's in the Vault??

The default RTP of What's in the Vault? is 96%.

What is the max win on What's in the Vault??

The maximum win on What's in the Vault? is 5,000x your stake, which is $5,000 on a $1 spin.

Can I play What's in the Vault? for free?

Yes. GambGenius members can open the official Just For The Win demo of What's in the Vault?, which runs on Just For The Win's own demo site. It uses play money only, so demo wins can't be withdrawn, and it is for players aged 18 and over.

Does What's in the Vault? have a bonus buy?

No bonus buy is listed for What's in the Vault? in the sources we checked.

Where this data comes from

slotcatalog.com Slot database
justforthewin.com Provider

Specs come from the provider's own site and 1 independent slot database. Casinos can run lower-RTP versions, so always check the game rules before you play.