Thomas Was Alone is a puzzle-platform game created by Mike Bithell, originally released as a Flash-based browser game in October 2010. The game was expanded and released for Microsoft Windows and OS X in July 2012. It has subsequently been released for Linux, PlayStation 3, PlayStation 4, PlayStation Vita, Xbox One, Wii U, iOS, Android and Nintendo Switch. In the game, the player controls one or more simple rectangles representing several out-of-control artificial intelligence entities, working with the shapes to get each to their individual end points on each level. Each shape is characterized by a unique name and personality, including the eponymous Thomas, which is conveyed to the player through the use of a narrator voiced by Danny Wallace, whose performance earned the game a BAFTA Games Award.

Michael Bithell is a British video game designer, developer, and podcaster best known for his work on Thomas Was Alone and Volume. He is a regular host of the Play, Watch, Listen podcast, along with Alanah Pearce, Troy Baker, and Austin Wintory. He also co-hosts an evolving pop culture podcast with long time friend, British YouTuber and comedic author Daniel Hardcastle, talking about shows and movies like Star Trek, Fast and Furious, Mission Impossible and various others.