Atelier 801 is a French independent video game development company founded by Jean-Baptiste Le Marchand (Tigrounette) and Mélanie Christin (Melibellule).

In 2011 they left their jobs at Ankama to start Atelier 801,[7][8][9][10][11][12] allowing them to finally fulfill players' demand by working full time on the game and now employing ten extra people.

[13] Atelier 801 was hosted in one of the business incubators of the northern La Ruche network in Tourcoing until January 2013, when they moved to Lille.

The year 2014 proved to be busy as they released Nekodancer, a massively multiplayer musical game, and then their first mobile game on iOS and Android called Run for Cheese, the first one set in the Transformice universe, in October 2014.

[16][17] They also began working on Dead Maze, a survival MMO set in a contemporary world, filled with zombies and crafting possibilities.