 UFO: Enemy Unknown/X-Com: UFO Defense |
| UFOs: | Small Scout • Medium Scout • Large Scout • Abductor • Harvester • Terror Ship • Battleship • Supply Ship |
| UFO Components: | UFO Power Source • Elerium-115 • UFO Navigation • Alien Alloys |
| UFO Facilities: | Alien Food • Alien Reproduction • Alien Entertainment • Alien Surgery • Examination Room • Alien Habitat • UFO Construction |