Ufo: Enemy Unknown -

The story begins in 1998 following a massive spike in UFO sightings, mysterious abductions, and localized attacks. After individual nations like Japan fail to contain the threat independently, representatives from the world's most powerful nations meet secretly in Geneva on December 11, 1998. They establish the , providing it with funding, base facilities, and a mandate to identify and eliminate the alien menace. The Escalation

You recover alien corpses and technology from crash sites to develop laser and plasma weaponry. 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 story begins in 1998 following a massive

You discover that alien technology relies on Elerium-115 , a stable heavy element not found on Earth, which becomes the most vital resource for humanity's advanced crafts and weapons. The Escalation You recover alien corpses and technology

The story continues in X-COM: Terror from the Deep , where a second wave of aliens awakens from the ocean floor.