Transformice

Live

PlatformerCasual and puzzle

Platforms
Release:: 2010
Developer:: Atelier 801
Scale:: Average concurrent players812
Player rating:: 88.1% · 28.9K
Profile data as of:: August 29, 2026

Transformice is an MMO platformer about dozens of mice running to bring back the cheese! Will the almighty Shaman help you or just ruin everything? Millions of levels, hectic physics, skill trees, and more importantly... hats!

Official website

Screenshots

Images from the source page, in source order. Select an image to view it full size.

Videos

Videos from the game’s source page, in source order. Select one to open the original.

Transformice - Steam Release TrailerLaunch video

Overview

Franchise: Unknown
Release date: Windows — January 30, 2015
macOS — January 30, 2015
Linux — January 30, 2015
Web browser — 2010
Developer: Atelier 801
Publisher: Atelier 801
Age rating: ClassInd 14 — Ages 14+ · Steam Store
Content warnings: Not specified by the storefront
Interaction modes: Multiplayer
Session capacity: Unknown
Access model: Free to play
Monetization: Unknown
Storefront price: Unknown
Store contents: 14 Achievements · Steam Store, August 29, 2026
Languages: EnglishRussianGermanFrenchSpanishPortuguesePortuguese, BrazilItalianPolishTurkish

Classification

Genres: PlatformerCasual and puzzle
Evidence:
Setting and subject matter: Unknown
Camera: Side view
Evidence:
Visual style: Unknown
Combat system type: Unknown

Scale

Concurrent players · period average

812

August 16, 2026 — September 15, 2026

under 100over 1 million

Detailed value: 812.4
Coverage: Steam
Origin: Published by source
Confidence: Medium — The site's calculation method is not published
Basis: Average concurrent Steam players over 30 days from Steam Charts: 812
Date observed: September 15, 2026
Source: Steam Charts

Concurrent players · period peak

1,480

August 16, 2026 — September 15, 2026

under 100over 1 million

Detailed value: 1,481
Coverage: Steam
Origin: Published by source
Confidence: Medium — The site's calculation method is not published
Basis: Peak concurrent Steam players over 30 days from Steam Charts: 1,481
Date observed: September 15, 2026
Source: Steam Charts

Ratings: players88.1% · 28.9KSteam, US storefront · Steam reviews
players69%Global · IGDB mirror
Last update: July 4, 2025 — The Great Relic Fishing Expedition! (0 updates over 90 days) · Steam update feed

Concurrent players

period average · January 2015 — August 2026 · Steam · published by source · Steam Charts

2,2100

January 2015August 2026

Change over period: +43%increase from 545 (January 2015) to 780 (August 2026)
Gaps: No gaps in observed months
Observations: 140

Mechanics

Key game systems from the Mechanics Catalog. Assessment axes are independent and are not combined into a single score. An unassessed mechanic is unknown, not absent.

Clan system
Not assessed
A persistent player organization created or recognized by the game itself, with a stable membership, a life beyond one session, a shared identity, functions, and goals.
Player economy
Not assessed
An in-game system where player decisions materially influence at least part of the production, supply, distribution, or price of in-game value.
Territory control
Not assessed
A system where players or organizations capture, hold, and use parts of the game world with lasting consequences.
Competitive PvP
Not assessed
Structured competition between players with rules and a measurable outcome, usually including skill-based matchmaking.
Live service and updates
Not assessed
A regular rhythm of meaningful updates, including seasons, patches, events, and a roadmap that supports a long product life.
Character progression
Not assessed
A system for long-term character or account development through levels, skills, equipment, and specializations.