Marshmallow Marvin: Grimvault - Brave the Cursed Depths

8/22/2026, 10:49:16 AM

Release date: 6/4/2026

Tags: #action #adventure #casual #arcade #platformer #indie #2d-platformer #exploration

User Reviews

Score: 100%1 user reviews
Review Count: 1 reviews
Fetched At: 8/30/2026, 9:52:59 PM

Reference prices

Japan

¥ 580 (JPY)

Steam JP

$4.99 (USD)

Steam Global

Live Store Snapshot

Body text may reflect the state at publication time. For the latest sale, price, and review changes, prioritize the live price panel, review panel, and the Steam store listing.

Japan Price: ¥ 580
Global Price: $4.99
Price in Your Region: ¥ 580Prices as Steam lists them per country. What you are actually charged depends on your Steam account settings.Regional prices checked: 30 Aug 2026
Sale Status: Regular pricing
Price Checked At: 8/26/2026, 5:16:58 PM

The price snapshot and review snapshot differ by about 101 hours. Because they are not always refreshed at the same time, confirm the latest Steam listing before making a purchase decision.

Key highlight

Embark on a perilous 2D pixel art adventure in Marshmallow Marvin: Grimvault, a challenging platformer where you guide Marvin through cursed depths filled with traps and hazards. Survive the Grimvault by mastering platfo

Who this is for

If you're a fan of classic 2D platformers, Marshmallow Marvin: Grimvault is definitely worth checking out. It offers charming pixel art and satisfyingly challenging action.

Details

Overview

Marshmallow Marvin: Grimvault invites players into a perilous 2D pixel art world where survival is paramount. Developed and published by Jolly Lobster Interactive LTD, this action-adventure platformer plunges you into the cursed depths of the Grimvault. Your mission is to guide Marvin through a series of increasingly challenging chambers, each brimming with ancient traps, deadly turrets, and treacherous platforms. The core gameplay loop revolves around precise platforming, careful navigation, and resource management as you strive to reach the end of each level and escape the vault's clutches.

Highlights

Genre Blend: Combines action, adventure, casual, arcade, and platformer elements with a distinct 2D pixel art style.
Core Mechanics: Features classic platforming challenges, including leaping across crumbling platforms, avoiding hazards, and dodging enemy fire.
Exploration & Collection: Players will explore dangerous chambers, collect coins, and find health-restoring hearts while uncovering hidden secrets.

Who It's For

This game is ideal for players who enjoy classic 2D platformers with a focus on challenging gameplay and exploration. Fans of pixel art aesthetics and those looking for an engaging arcade-style experience with a touch of adventure will find Marshmallow Marvin: Grimvault a compelling choice. Its casual accessibility also makes it suitable for a broad range of players seeking a straightforward yet demanding platforming adventure.

Game Info

Marshmallow Marvin: Grimvault is a paid title released on June 4, 2026. It supports Steam Achievements and features multiplayer capabilities. The game is developed and published by Jolly Lobster Interactive LTD. It is available in English.