Wikipedia
Transformice
Transformice is an independent multiplayer free-to-play online platform browser game created by French designers known by their aliases Melibellule and Tigrounette. Melibellule produces the game's artwork and graphics, while Tigrounette programs the game's functions and mechanics. The game was released on May 1, 2010. Transformice was released on Steam on January 30, 2015.