Win the game from each of the 5 starting locations.
Beat the game on Impossible difficulty.
Shoot down 40 UFOs.
Complete a Very Hard abduction mission in five turns or less on Classic or Impossible difficulty.
Beat the game in Ironman mode on Classic or Impossible difficulty.
Beat the game on Classic difficulty.
Take your new ally into the final challenge.
Complete Gangplank.
Complete Confounding Light.
Complete Confounding Light with more than 3 turns left on the timer.
Complete Friends in Low Places.
Clear a UFO crash site with one soldier on Classic or Impossible difficulty.
Kill 50 aliens with explosive weapons.
Kill 500 aliens.
Have a soldier survive every mission in a full game.
Beat the game on any difficulty.
In a single game, complete every Research Project.
In a single game, shoot down one of each alien craft.
In a single game, complete every Autopsy.
Earn the "Excellent" rating in every performance category on a terror mission.
In a single game, complete every Foundry project.
Build a suit of powered armor.
Build a S.H.I.V.
Staff the Research Labs with 80 scientists.
Acquire 1000 credits in one month.
Staff the Engineering Department with 80 engineers
Get satellite coverage over every country on one continent.
Kill 150 aliens.
Advance one of your soldiers to Colonel rank.
Build a Workshop.
Build a Laboratory.
Gain access to the lowest level in your base.
Fulfill a Council request.
Build a base facility.
Shoot down a UFO.
Launch a Satellite.
Build an item.
Complete a Research Project.
Complete a mission without losing a soldier.
Complete the tutorial mission.
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