
Marshmallow Marvin: Grimvault
Marshmallow Marvin: Grimvault is a challenging 2D pixel art platformer where you guide Marvin through cursed vaults and haunted tombs, avoiding deadly traps, dodging automated turrets, collecting coins, and mastering precision platforming to uncover ancient secrets and survive the Grimvault.
Offers
What are keyshops?Official stores
Official stores with direct support.
About Marshmallow Marvin: Grimvault
Guide Marvin Through the Grimvault
Enter the cursed depths of Marshmallow Marvin: Grimvault and help Marvin survive a haunted underground vault filled with ancient traps, deadly turrets, shifting passages, and perilous platforms. In this 2D pixel art platformer, you guide Marvin through increasingly dangerous chambers while collecting coins, restoring health with hearts, solving platforming challenges, and uncovering the secrets hidden within the Grimvault.
Gameplay
Your objective is simple: reach the end of each level and survive the vault.
As you journey through each stage, you’ll leap across crumbling platforms, avoid deadly hazards, dodge enemy fire, and collect valuable items along the way. Coins reward exploration, while hearts restore Marvin’s health, giving them a better chance of surviving the dangers ahead.
The early levels introduce the core challenges and help you get comfortable navigating the Grimvault’s dark corridors. But as you progress, the vault becomes more dangerous. Levels grow more intricate, traps appear more often, and success depends on precise timing, quick reflexes, and smart decision making.
Every step deeper into the Grimvault brings new dangers, ancient secrets, and a greater challenge for Marvin to overcome.
Hazards and Challenges
The Grimvault is packed with deadly obstacles that will test your timing and precision:
Spikes that punish poorly timed jumps
Moving spikes that rise and fall, demanding careful movement
Automated turrets that lock onto Marvin and fire projectiles, forcing you to stay alert and react quickly
Treacherous platforms that require patience, timing, and control
Each new level introduces more complex layouts and a higher density of threats, pushing you to sharpen your skills and adapt your strategy.
A Haunted Vault Adventure
The game features a retro pixel art style that creates a nostalgic platforming experience while reinforcing the dark, mysterious atmosphere of the Grimvault. Haunted tombs, ancient relics, narrow corridors, and cursed chambers create a tense adventure where every jump could be Marvin’s last.
Risk, Reward, and Progression
Throughout the journey, you’ll constantly balance risk and reward:
Take dangerous routes to collect more coins
Play cautiously to preserve Marvin’s health
Time your jumps carefully to avoid traps and enemy fire
Explore deeper to uncover the Grimvault’s secrets
Completing each level brings a strong sense of accomplishment and pushes Marvin further into the cursed vault in their quest to survive its ancient dangers.
Key Features
Classic 2D platforming gameplay
Dark tomb and haunted vault setting
Challenging trap-filled levels
Coins that reward exploration
Health recovery through collectible hearts
Enemy turrets that dynamically target Marvin
Retro pixel art visuals
Increasing difficulty and more complex level design
Ancient relics, cursed chambers, and perilous puzzles
Game details
Game details
Age ratings
Game modes
Languages
Features
Marshmallow Marvin: Grimvault price history
Lowest tracked price: $4.49 (Jul 26, 2026) · current best: $4.49.
Marshmallow Marvin: Grimvault reviews
100% positive reviews all-time.
Marshmallow Marvin: Grimvault — frequently asked questions
Where can I buy Marshmallow Marvin: Grimvault at the cheapest price?
Right now the cheapest offer for Marshmallow Marvin: Grimvault is $4.49 at Steam. KingsPrice compares 1 offers from 1 stores — official stores and keyshops — and refreshes prices throughout the day.
What is the lowest price Marshmallow Marvin: Grimvault has ever been?
The lowest price KingsPrice has tracked for Marshmallow Marvin: Grimvault is $4.49 (recorded on Jul 26, 2026). This covers the stores and period we monitor — set a price alert to catch the next drop to that level.
How can I get Marshmallow Marvin: Grimvault at a discount?
Create a free price alert on this page and KingsPrice will email you when Marshmallow Marvin: Grimvault drops below your chosen price. The biggest discounts usually appear during seasonal Steam sales and publisher promotions — the sale calendar on this page shows the next confirmed event.
System requirements
Minimum
- OS: Windows 11
- Processor: Dual Core
- Memory: 8 GB RAM
- Graphics: Integrated Graphics
- DirectX: Version 11
- Storage: 1 GB available space
Recommended
- OS: Windows 11
- Processor: i3-8100
- Memory: 8 GB RAM
- Graphics: 1050ti
- DirectX: Version 11
- Storage: 1 GB available space












