High Quality Content by WIKIPEDIA articles! Thief is a series of stealth video games in which the player takes the role of Garrett, a thief in a fantasy/steampunk world resembling a cross between the Late Middle Ages and the Victorian era, with more advanced technologies interspersed. The series consists of Thief: The Dark Project (1998), Thief II: The Metal Age (2000), Thief: Deadly Shadows (2004) and Thief 4 (TBA). An expanded version of Thief: The Dark Project, titled Thief Gold, was released in 1999 and features three extra maps and several bug fixes.