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Pick a difficulty · Set your bet · Start round
Difficulty
Mines
Safe
Revealed
Multiplier
1.00×
potential cash-out
Vault Cleared
★ ★ ★
How to Play — Boom Vault
The Game

A 5×5 grid of 25 tiles hides mines. Click tiles to reveal gems and grow your multiplier. Cash out at any time — or push your luck to open the Vault.

Cash Out vs Full Clear
Cash OutLock current multiplier
Full ClearMax multiplier + Vault opens
Mine HitBet lost
Difficulties
Easy3 mines · full clear 2,208×
Medium7 mines · full clear 461K×
Hard12 mines · full clear ~5M×
Brutal18 mines · full clear 461K×
Insane21 mines · full clear 12,144×
Payout

Each safe tile increases your multiplier based on exact probability math with a 4% house edge. The less likely your survival, the higher it climbs.

Keyboard
EnterStart / Next Round
CCash Out (during round)
Settings
Win sound mode
Vocal: exclamations on big wins · SFX: classic sounds · Off: silent wins