| icon | info |
|---|---|
 | 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 |
