Beat the game on any difficulty.

In a single game, complete every Foundry project.

In a single game, complete every Autopsy.

Staff the Research Labs with 80 scientists.

Staff the Engineering Department with 80 engineers.

Kill an alien while flying. Single player only.

Build a suit of powered armor.

Gain access to the lowest level in your base.

Recover the Hyperwave Beacon.

Kill 50 aliens with explosive weapons.

Earn the "Excellent" rating in every performance category on a terror mission.

Uncover the alien base's location.

Advance one of your soldiers to Colonel rank.