High Quality Content by WIKIPEDIA articles! Trainz is a series of 3D train simulator computer games developed by Australian game developer N3V Games (formerly Auran). First released in 2001, the series has a large online community that creates and shares user-created content. The game has been released in several versions, including localized versions. Trainz Simulator 12 is the latest Windows installment in the franchise, which was released in April of 2011.