Interrogating high-ranking alien captives reveals that the various species are being manipulated by a master race. The Revelation
The modern XCOM: Enemy Unknown reboots this story for a new timeline. In the timeline of XCOM 2 , it is revealed that X-COM actually lost the war early on, and the "victory" from the previous game was a simulation run in the Commander's mind while they were held captive. UFO: Enemy Unknown
The ultimate goal is to destroy the Alien Brain , a massive bio-computer that serves as the mastermind and central hub for the invasion. The Endings The ultimate goal is to destroy the Alien
In the original 1994 game (released in North America as X-COM: UFO Defense ), the story unfolds through a mix of scripted events and emergent gameplay as you lead a secret paramilitary organization defending Earth from an extraterrestrial threat. The Outbreak (1998) UFO: Enemy Unknown