Full list of all 56 XCOM: Enemy Unknown trophies - 40 bronze, 12 silver, 3 gold and 1 platinum.
The base game contains 51 trophies, and there is 1 DLC pack containing 5 trophies.
Gain all trophies.
Win the game from each of the 5 starting locations.
Cure poison on five soldiers in a single mission. Single player only.
Beat the game on Impossible difficulty.
Beat the game in Ironman mode on Classic or Impossible difficulty.
Beat the game on Classic difficulty.
Shoot down 40 UFOs.
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.
Kill 500 aliens.
Have a soldier survive every mission in a full game.
Beat the game on any difficulty.
Make contact with the Ethereal hive mind.
Build the Gollop Chamber.
Mind Control an Ethereal. Single player only.
In a single game, complete every Foundry project.
In a single game, complete every Research Project.
In a single game, shoot down one of each alien craft.
Staff the Engineering Department with 80 engineers.
Find a soldier with the Gift.
Build a Laboratory.
Staff the Research Labs with 80 scientists.
Build a Workshop.
In a single game, complete every Autopsy.
Successfully assault an Overseer UFO.
Kill 50 aliens with explosive weapons.
Build the Hyperwave Relay.
Kill an alien while flying. Single player only.
Acquire 1000 credits in one month.
Gain access to the lowest level in your base.
Recover the Hyperwave Beacon.
Kill 150 aliens.
Build a suit of powered armor.
Uncover the alien base's location.
Build a S.H.I.V
Advance one of your soldiers to Colonel rank.
Build a Firestorm.
Stun an Outsider.
Earn the "Excellent" rating in every performance category on a terror mission.
Capture a live alien.
Fulfill a Council request.
Win a mission with an all-female squad. Single player only.
Shoot down a UFO.
Complete a Research Project.
Build a base facility.
Launch a Satellite.
Get satellite coverage over every country on one continent.
Build an item.
Complete a mission without losing a soldier.
Complete the tutorial mission.
Win a multiplayer match.
Take your new ally into the final challenge.
Complete Gangplank.
Complete Confounding Light with more than 3 turns left on the timer.
Complete Confounding Light.
Complete Friends in Low Places.