David Craddock's upcoming X-COM: UFO Defense book 'Monsters in the Dark' now on Kickstarter | Shacknews
X-COM: UFO Defense Part #1 - Prologue
Just beat UFO: Enemy Unknown for the first time on Superhuman. It took 3 real life days of playing for 16 hours per day. Honestly I forgot how good the ending is,
X-Com: UFO Defense on GOG.com
X-COM: UFO Defense on Steam
Humble Store offers X-COM: UFO Defense for free, XCOM 2 for dirt cheap | PCWorld