Homeworld: Emergence was originally released as "Homeworld: Cataclysm". "Cataclysm" is now a registered trademark of Blizzard Entertainment, Inc., and the game has been renamed to avoi
d confusion. Other than the subtitle change, the game is identical to the game released in 2000. Homeworld: Emergence is the second game in the Homeworld series. Emergence was originally an expansion pack for Homeworld, but the changes to the game engine and long, detailed single-player campaign (17 missions to Homeworld's 16) prompted the publisher to change it to a stand-alone release.