Minecraft wiki entry for Mojang_Studios, associated text: Cobalt is written in Lua, allowing for the game to be easily modifiable. The game was first made available through an alpha, starting from December 16, 2011, when it was offered at a discounted price.[24][25] On August 20, 2013, Cobalt was announced to be released on the Xbox 360 and Xbox One, with FatShark AB assisting with the port.[26]