Tinker, also known as Microsoft Tinker, is a puzzle video game developed by Fuel Industries in which the player controls a robot through various mazes and obstacle courses. It was originally released on September 23, 2008 as part of Windows Ultimate Extras, and contained 60 levels including a 20-level tutorial. A free map editor (level builder) was also released, however it is not compatible with the Games for Windows – Live version of Tinker. It is only compatible with the Windows Ultimate Extras version. On December 15, 2009, an expanded Live-enabled version of the game was released on the Games for Windows – Live client. The game is available for Windows XP, Windows Vista and Windows 7, including users who do not have access to Windows Vista Ultimate Extras in other Windows Vista editions, and contains 160 levels including the tutorial. This version also has 15 Achievements worth 200G, similar to many Xbox Live Arcade games. Like every Games for Windows - Live game, it requires the user to sign in using a Gamertag assigned to a Windows Live ID; however, the Windows Vista Ultimate Extras version did not have this requirement.