About the Game
Embark on an epic journey in Marshmallow Marvin: Grimvault, where dark tombs, ancient relics, and perilous puzzles await! Join the fearless adventurer Marvin as they explore haunted vaults, filled with deadly traps, shifting passages, and ancient secrets. Test your wits and agility to solve intricate puzzles, dodge treacherous obstacles, and unearth the mysteries of the cursed vault. Will Marvin conquer the GrimVault's dangers, or will the vault's dark secrets consume them forever? The adventure begins now!
Screenshots
Details
| Platform | MS Store (PC) |
| Release Date | 08 Apr 2026 |
| Region | Region Free |
| Type | Digital CD Key |
| Delivery | ⚡ Instant |
| Languages | English |
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Marshmallow Marvin: Grimvault PC Windows CD Key
- Download and install the Microsoft Store app on your PC
- Sign in to your Microsoft account
- Go to Microsoft Store → Redeem a code
- Enter your unique key from the Orders page
- Game is added to your library — ready to download!