Gain all trophies.
Complete Confounding Light with more than 3 turns left on the timer.
Take your new ally into the final challenge.
Complete Gangplank.
Complete Confounding Light.
Complete Friends in Low Places.
Win a mission with an all-female squad. Single player only.
Make contact with the Ethereal hive mind.
Complete the tutorial mission.
Shoot down a UFO.
Recover the Hyperwave Beacon.
Successfully assault an Overseer UFO.
Fulfill a Council request.
Gain access to the lowest level in your base.
Build an item.
Build a base facility.
Complete a Research Project.
Win the game from each of the 5 starting locations.
Complete a Very Difficult abduction mission in five turns or less on Classic or Impossible difficulty.
Build a Workshop.
Build a Laboratory.
Build a S.H.I.V
In a single game, complete every Foundry project.
Staff the Engineering Department with 80 engineers.
Staff the Research Labs with 80 scientists.
Acquire 1000 credits in one month.
Advance one of your soldiers to Colonel rank.
Complete a mission without losing a soldier.
Cure poison on five soldiers in a single mission. Single player only.
Build a suit of powered armor.
In a single game, shoot down one of each alien craft.
Get satellite coverage over every country on one continent.
Launch a Satellite.
Build a Firestorm.
Build the Gollop Chamber.
Build the Hyperwave Relay.
Uncover the alien base's location.
Stun an Outsider.
Capture a live alien.
Find a soldier with the Gift.
In a single game, complete every Autopsy.
Kill an alien while flying. Single player only.
In a single game, complete every Research Project.
Earn the "Excellent" rating in every performance category on a terror mission.
Have a soldier survive every mission in a full game.
Shoot down 40 UFOs.
Kill 500 aliens.
Kill 150 aliens.
Kill 50 aliens with explosive weapons.
Clear a UFO crash site with one soldier on Classic or Impossible difficulty.
Beat the game on Impossible difficulty.
Beat the game on Classic difficulty.
Beat the game on any difficulty.
Mind Control an Ethereal. Single player only.
Win a multiplayer match.
Beat the game in Ironman mode on Classic or Impossible difficulty.
