PC DOS, Amiga CD32 (1994), Amiga, Playstation (1995), Windows (1998)
Gameplay starts on January 1, 1999, with the player choosing a location for their first base on the Geoscape screen. The Geoscape screen is a representation of the world, which displays X-COM bases and craft, UFOs, alien bases, and sites of alien activity (alien terror sites). The player can choose from here to deploy X-COM craft to either patrol designated locations, intercept UFOs, or land at a UFO crash site, landed UFO, alien terror site, alien base, or (when research allows) the alien's main base...