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