Beat the game on Classic difficulty.

Unlocked: 28 Oct 2023 18:15:06

Clear a UFO crash site with one soldier on Classic or Impossible difficulty.

Unlocked: 14 Jul 2016 19:49:16

Shoot down 40 UFOs.

Unlocked: 14 Jul 2016 15:44:49

Have a soldier survive every mission in a full game.

Unlocked: 14 Jul 2016 15:14:47

In a single game, complete every Research Project.

Unlocked: 14 Jul 2016 12:49:17

In a single game, complete every Foundry project.

Unlocked: 13 Jul 2016 21:31:37

Win a mission with an all-female squad. Single player only.

Unlocked: 30 Jun 2016 00:05:57

Beat the game on any difficulty.

Unlocked: 29 Jun 2016 22:49:38

Make contact with the Ethereal hive mind.

Unlocked: 29 Jun 2016 14:00:16

In a single game, shoot down one of each alien craft.

Unlocked: 29 Jun 2016 13:43:48

Kill 500 aliens.

Unlocked: 28 Jun 2016 16:26:45

Cure poison on five soldiers in a single mission. Single player only.

Unlocked: 28 Jun 2016 16:22:45

Staff the Engineering Department with 80 engineers

Unlocked: 28 Jun 2016 15:36:50

Build a S.H.I.V.

Unlocked: 28 Jun 2016 13:30:50

Mind Control an Ethereal. Single player only.

Unlocked: 27 Jun 2016 23:12:10

Kill 50 aliens with explosive weapons.

Unlocked: 27 Jun 2016 21:56:30

Win a multiplayer match.

Unlocked: 27 Jun 2016 02:22:03

Build the Gollop Chamber.

Unlocked: 27 Jun 2016 01:34:51

In a single game, complete every Autopsy.

Unlocked: 26 Jun 2016 23:40:33

Successfully assault an Overseer UFO.

Unlocked: 26 Jun 2016 22:57:46

Acquire 1000 credits in one month.

Unlocked: 26 Jun 2016 21:21:41

Build a Firestorm.

Unlocked: 26 Jun 2016 21:18:31

Kill an alien while flying. Single player only.

Unlocked: 26 Jun 2016 20:56:55

Get satellite coverage over every country on one continent.

Unlocked: 26 Jun 2016 13:04:25

Gain access to the lowest level in your base.

Unlocked: 26 Jun 2016 13:00:06

Find a soldier with the Gift.

Unlocked: 25 Jun 2016 23:37:11

Build a suit of powered armor.

Unlocked: 25 Jun 2016 20:50:17

Build the Hyperwave Relay.

Unlocked: 25 Jun 2016 20:14:44

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

Unlocked: 25 Jun 2016 20:05:55

Advance one of your soldiers to Colonel rank.

Unlocked: 25 Jun 2016 15:55:04

Recover the Hyperwave Beacon.

Unlocked: 25 Jun 2016 15:53:05

Kill 150 aliens.

Unlocked: 25 Jun 2016 15:37:12

Uncover the alien base's location.

Unlocked: 24 Jun 2016 22:24:54

Stun an Outsider.

Unlocked: 24 Jun 2016 22:08:12

Build a Workshop.

Unlocked: 24 Jun 2016 20:52:45

Fulfill a Council request.

Unlocked: 24 Jun 2016 18:22:26

Capture a live alien.

Unlocked: 24 Jun 2016 18:15:36

Build a Laboratory.

Unlocked: 24 Jun 2016 18:02:51

Build a base facility.

Unlocked: 24 Jun 2016 17:25:26

Shoot down a UFO.

Unlocked: 24 Jun 2016 17:03:37

Launch a Satellite.

Unlocked: 24 Jun 2016 16:55:07

Build an item.

Unlocked: 24 Jun 2016 16:23:27

Complete a Research Project.

Unlocked: 24 Jun 2016 16:23:06

Complete a mission without losing a soldier.

Unlocked: 24 Jun 2016 16:20:31

Complete the tutorial mission.

Unlocked: 24 Jun 2016 15:28:59

Staff the Research Labs with 80 scientists.

Unlocked: Offline

Complete a Very Hard abduction mission in five turns or less on Classic or Impossible difficulty.

Unlocked: Offline

Beat the game in Ironman mode on Classic or Impossible difficulty.

Beat the game on Impossible difficulty.

Win the game from each of the 5 starting locations.

Complete Friends in Low Places.

Complete Confounding Light.

Complete Gangplank.

Take your new ally into the final challenge.

Complete Confounding Light with more than 3 turns left on the timer.