Unlocked: Jan 8, 2013 6:38pm
Humanity's Savior
Beat the game on any difficulty.
Unlocked: Jan 8, 2013 3:28pm
Bada Boom
Kill 50 aliens with explosive weapons.
Unlocked: Jan 8, 2013 3:28pm
Welcoming Committee
Kill 150 aliens.
Unlocked: Jan 8, 2013 3:28pm
Pale Horse
Kill 500 aliens.
Unlocked: Jan 11, 2013 3:50am
Shooting Stars
Shoot down 40 UFOs.
Unlocked: Jan 8, 2013 5:16pm
As A Scalpel
Earn the "Excellent" rating in every performance category on a terror mission.
Unlocked: Jan 9, 2013 2:32am
Angel of Death
Kill an alien while flying. Single player only.
Unlocked: Jan 10, 2013 4:36am
All Employees Must Wash Hands…
In a single game, complete every Autopsy.
Unlocked: Jan 9, 2013 12:26pm
Beyond the Veil
Find a soldier with the Gift.
Unlocked: Jan 8, 2013 4:40pm
Prisoner of War
Capture a live alien.
Unlocked: Jan 8, 2013 7:25pm
The Gatekeeper
Stun an Outsider.
Unlocked: Jan 8, 2013 9:17pm
X Marks the Spot
Uncover the alien base's location.
Unlocked: Jan 9, 2013 1:45pm
See All, Know All
Build the Hyperwave Relay.
Unlocked: Jan 9, 2013 2:03am
Ride the Lightning
Build a Firestorm.
Unlocked: Jan 8, 2013 4:00pm
Eye in the Sky
Launch a Satellite.
Unlocked: Jan 8, 2013 7:29pm
All Together Now
Get satellite coverage over every country on one continent.
Unlocked: Jan 8, 2013 9:09pm
Man No More
Build a suit of powered armor.
Unlocked: Jan 8, 2013 3:32pm
We Happy Few
Complete a mission without losing a soldier.
Unlocked: Jan 8, 2013 9:01pm
The Hardest Road
Advance one of your soldiers to Colonel rank.
Unlocked: Jan 8, 2013 9:14pm
Worth Every Penny
Acquire 1000 credits in one month.
Unlocked: Jan 9, 2013 6:23am
One Gun at a Time
Staff the Engineering Department with 80 engineers.
Unlocked: Jan 8, 2013 6:38pm
You Have 5 Seconds to Comply
Build a S.H.I.V.
Unlocked: Jan 8, 2013 4:01pm
Theory...
Build a Laboratory.
Unlocked: Jan 8, 2013 4:50pm
...and Practice.
Build a Workshop.
Unlocked: Jan 8, 2013 3:58pm
What Wonders Await
Complete a Research Project.
Unlocked: Jan 8, 2013 3:45pm
Up and Running
Build a base facility.
Unlocked: Jan 8, 2013 3:34pm
Combat Ready
Build an item.
Unlocked: Jan 8, 2013 4:01pm
Drums in the Deep
Gain access to the lowest level in your base.
Unlocked: Jan 9, 2013 6:27am
Happy to Oblige
Fulfill a Council request.
Unlocked: Jan 10, 2013 4:33am
And Hell's Coming With Me
Successfully assault an Overseer UFO.
Unlocked: Jan 9, 2013 4:18am
Off My Planet
Recover the Hyperwave Beacon.
Unlocked: Jan 8, 2013 3:46pm
Tables Turned
Shoot down a UFO.
Unlocked: Mar 1, 2013 4:26am
And So It Begins…
Complete the tutorial mission.
Unlocked: May 8, 2013 6:09am
New Friend
Complete Friends in Low Places.
Unlocked: May 8, 2013 7:24am
Bait the Hook
Complete Confounding Light.
Unlocked: May 8, 2013 8:01am
The Bigger They Are
Complete Gangplank.
No Looking Back
Beat the game in Ironman mode on Classic or Impossible Difficulty.
Meet New People. Then Kill Them.
Win a multiplayer match.
Xavier
Mind Control an Ethereal. Single player only.
Earth First
Beat the game on Classic difficulty.
Our Finest Hour
Beat the game on Impossible difficulty.
Lone Wolf
Clear a UFO crash site with one soldier on Classic or Impossible difficulty.
Ain't No Cavalry Comin'
Have a soldier survive every mission in a full game.
Edison
In a single game, complete every Research Project.
Hunter/Killer
In a single game, shoot down one of each alien craft.
Bubonic
Play a multiplayer match against someone with this achievement.
Oppenheimer
Staff the Research Labs with 80 scientists.
Skunkworks
In a single game, complete every Foundry project.
Wet Work
Complete a Very Hard abduction mission in five turns or less on Classic or Impossible difficulty.
A Continental Fellow
Win the game from each of the 5 starting locations.
Flight of the Valkyries
Win a mission with an all-female squad. Single player only.