Released digitally on February 25, 2015, for Windows computers by Gearbox and on August 6, 2015, for macOS by Aspyr Media, the collection includes the original and remastered versions of the two games. A retail edition of the PC version of the game was released by Ubisoft on May 7, 2015. In addition to compatibility fixes for modern computers, the "classic" version of "Homeworld" removes local multiplayer and the licensed Yes song; the "remastered" version adds a new game engine for the two games, and upgraded visuals, graphical effects, models, and sound. It also initially removed some functionality not present in "Homeworld 2", such as the fuel system, ballistic projectile modeling, and tactical ship formations; some of these were restored in a 2016 patch.