DarkStar One is a space trading and combat simulator game developed by German studio Ascaron and published by CDV.

The PC version of the game was officially released on June 16, 2006 in the European Union, August 14, 2006 in North America and subsequently digitally via (GOG.com) on December 17, 2006 (English only), and (DotEmu) on May 19, 2008 (English, French, German). The Xbox 360 version was released on July 20, 2008 under the title Darkstar One: Broken Alliance by Kalypso Media, featuring 1080p and improved gameplay.