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.
Humanity's Savior
Beat the game on any difficulty.
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.
Bada Boom
Kill 50 aliens with explosive weapons.
Welcoming Committee
Kill 150 aliens.
Pale Horse
Kill 500 aliens.
Shooting Stars
Shoot down 40 UFOs.
Ain't No Cavalry Comin'
Have a soldier survive every mission in a full game.
As A Scalpel
Earn the "Excellent" rating in every performance category on a terror mission.
Edison
In a single game, complete every Research Project.
Angel of Death
Kill an alien while flying. Single player only.
All Employees Must Wash Hands…
In a single game, complete every Autopsy.
Beyond the Veil
Prisoner of War
The Gatekeeper
X Marks the Spot
See All, Know All
On the Shoulders of Giants
Ride the Lightning
Eye in the Sky
Launch a Satellite.
All Together Now
Get satellite coverage over every country on one continent.
Hunter/Killer
In a single game, shoot down one of each alien craft.
Man No More
Build a suit of powered armor.
Bubonic
Play a multiplayer match against someone with this achievement.
We Happy Few
Complete a mission without losing a soldier.
The Hardest Road
Advance one of your soldiers to Colonel rank.
Worth Every Penny
Acquire 1000 credits in one month.
Oppenheimer
Staff the Research Labs with 80 scientists.
One Gun at a Time
Staff the Engineering Department with 80 engineers.
Skunkworks
In a single game, complete every Foundry project.
You Have 5 Seconds to Comply
Build a S.H.I.V.
Theory...
Build a Laboratory.
...and Practice.
Build a Workshop.
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.
What Wonders Await
Complete a Research Project.
Up and Running
Build a base facility.
Combat Ready
Build an item.
Drums in the Deep
Gain access to the lowest level in your base.
Happy to Oblige
Fulfill a Council request.
And Hell's Coming With Me
Off My Planet
Tables Turned
Shoot down a UFO.
And So It Begins…
Complete the tutorial mission.
The Volunteer
Flight of the Valkyries
Win a mission with an all-female squad. Single player only.
New Friend
Bait the Hook
The Bigger They Are
Rising Dragon
All Aboard
Who Needs Limbs?
Augment a soldier in single player
A Little Bit Alien
Modify a soldier in single player
Enemy Within
Get a Soldier to have 5 modifications in single player
Steel Martyr
Deploy three tactical subsystems on a single soldier in single player
Apotheosis Denied
Deal with the newest global threat
They Shall Not Pass
Eliminate all alien waves
Zom-B-Gone
Eradicate the infestation
An Army Of Four
Beat the game without buying a Squad Size upgrade (Classic+ difficulty)
The Meld Squad
Field a fully enhanced squad and win the mission
Shieldbuster
Eliminate an enemy's shield and kill it on the same turn in single player
Someone Your Own Size
Kill a Muton Berserker in melee combat in single player
Taking A Load Off
Stop a squad member from suffocating in single player
Where in the World
Make certain of the new threat's location
Mind the Step
Jump two stories in one move in single player
Nice Cover
Use Collateral Damage to blow up a car in single player
By Our Powers Combined
Field a squad with 4 augmented soldiers, each with a different base ability and win the mission
Rise of the Machines
Field a squad consisting entirely of augmented soldiers and SHIVs (min. 4) and win the mission
Mutatis Mutandis
Field a squad where all members have at least two modifications (min. 4) and win the mission
Mental Minefield
Kill an enemy as it is psionically attacking you in single player
Anger Management
Proc Combat Rush on the entire squad (min. 4)
Remington… Max Remington
Have your special-duty soldier kill three enemies in the same mission
G’day
Kill an elite enemy Sniper with one of your own snipers in single player
Regenerate This
Kill an elite enemy Medic with explosive damage in single player
Tingling Sensation
Kill an unseen enemy detected by a specially modified soldier in single player
Pain in the Neck
Cause an enemy to suicide
Solid Prospect
Complete Deluge
Ours are the Furies
Complete Furies
Elite Defense
Beat a new special mission without losing any assets
Guardian of Earth
Designate a highly decorated soldier as the Volunteer
All Hands on Deck
Get at least 4 kills with XCOM Base Security personnel