Acheron is a relatively small total conversion project created by Crusader Alpha. Originally known as Escape Velocity Darkstar, the name was changed in late 2007 and the universe was heavily modified to increase the sophistication of the game and decrease its size. Acheron was released on June 10, 2008. Acheron does not currently have any storylines; however, it has been confirmed that a significant official storyline expansion is currently underway, known for now as "AE". Crusader Alpha is allowing developers to create expansions and plug-ins for Acheron.