We Happy Few
Complete a mission without losing a soldier.
89.6%
Combat Ready
Build an item.
89.5%
What Wonders Await
Complete a Research Project.
89.5%
Eye in the Sky
Launch a Satellite.
86.9%
Tables Turned
Shoot down a UFO.
86.5%
And So It Begins…
Complete the tutorial mission.
86.1%
Up and Running
Build a base facility.
85.0%
Happy to Oblige
Fulfill a Council request.
80.4%
Welcoming Committee
Kill 150 aliens.
72.5%
...and Practice.
Build a Workshop.
72.5%
The Hardest Road
Advance one of your soldiers to Colonel rank.
68.3%
Theory...
Build a Laboratory.
63.2%
Man No More
Build a suit of powered armor.
59.5%
All Together Now
Get satellite coverage over every country on one continent.
59.5%
Worth Every Penny
Acquire 1000 credits in one month.
57.0%
As A Scalpel
Earn the "Excellent" rating in every performance category on a terror mission.
56.9%
Drums in the Deep
Gain access to the lowest level in your base.
51.2%
And Hell's Coming With Me
49.0%
All Employees Must Wash Hands…
In a single game, complete every Autopsy.
48.1%
You Have 5 Seconds to Comply
Build a S.H.I.V.
46.7%
On the Shoulders of Giants
44.9%
Pale Horse
Kill 500 aliens.
41.1%
One Gun at a Time
Staff the Engineering Department with 80 engineers.
37.2%
Bada Boom
Kill 50 aliens with explosive weapons.
35.7%
Humanity's Savior
Beat the game on any difficulty.
35.5%
Oppenheimer
Staff the Research Labs with 80 scientists.
33.8%
Angel of Death
Kill an alien while flying. Single player only.
25.7%
Hunter/Killer
In a single game, shoot down one of each alien craft.
19.7%
Flight of the Valkyries
Win a mission with an all-female squad. Single player only.
18.1%
Skunkworks
In a single game, complete every Foundry project.
14.3%
Meet New People. Then Kill Them.
Win a multiplayer match.
9.3%
Bubonic
Play a multiplayer match against someone with this achievement.
8.6%
Edison
In a single game, complete every Research Project.
7.7%
Earth First
Beat the game on Classic difficulty.
5.6%
Shooting Stars
Shoot down 40 UFOs.
5.6%
Wet Work
Complete a Very Hard abduction mission in five turns or less on Classic or Impossible difficulty.
5.6%
Xavier
Mind Control an Ethereal. Single player only.
5.1%
No Looking Back
Beat the game in Ironman mode on Classic or Impossible Difficulty.
1.6%
Ain't No Cavalry Comin'
Have a soldier survive every mission in a full game.
1.4%
Lone Wolf
Clear a UFO crash site with one soldier on Classic or Impossible difficulty.
1.0%
Our Finest Hour
Beat the game on Impossible difficulty.
0.7%
A Continental Fellow
Win the game from each of the 5 starting locations.
0.2%
