Alien Life Forms

The alien menace have a surprisingly diverse racial hierarchy. Information on alien races encountered during the First Alien War can be found in this section.

Overviews / Summaries

For comparisons between aliens, stats listings, etc., see Overviews of Aliens.

In Depth: Alien Races and their Abominable Thralls

• Sectoid
  • Cyberdisc
• Floater
  • Reaper
• Snakeman
  • Chryssalid
    • Zombie
• Muton
  • Celatid
  • Silacoid
• Ethereal
  • Sectopod