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76 of 85 (89%) achievements earned:
Personal Achievements
 

No Looking Back

Beat the game in Ironman mode on Classic or Impossible Difficulty.
Unlocked 24 Nov, 2014 @ 12:37am

Humanity's Savior

Beat the game on any difficulty.
Unlocked 24 Nov, 2014 @ 12:37am

Earth First

Beat the game on Classic difficulty.
Unlocked 24 Nov, 2014 @ 12:37am

Lone Wolf

Clear a UFO crash site with one soldier on Classic or Impossible difficulty.
Unlocked 20 Oct, 2014 @ 7:10am

Bada Boom

Kill 50 aliens with explosive weapons.
Unlocked 20 Oct, 2014 @ 2:19am

Welcoming Committee

Kill 150 aliens.
Unlocked 20 Oct, 2014 @ 2:18am

Pale Horse

Kill 500 aliens.
Unlocked 14 Nov, 2014 @ 4:58am

Ain't No Cavalry Comin'

Have a soldier survive every mission in a full game.
Unlocked 24 Nov, 2014 @ 12:37am

As A Scalpel

Earn the "Excellent" rating in every performance category on a terror mission.
Unlocked 15 Nov, 2014 @ 1:48am

Edison

In a single game, complete every Research Project.
Unlocked 14 Nov, 2014 @ 8:19am

Angel of Death

Kill an alien while flying. Single player only.
Unlocked 13 Nov, 2014 @ 6:27am

All Employees Must Wash Hands…

In a single game, complete every Autopsy.
Unlocked 14 Nov, 2014 @ 5:00am

Beyond the Veil

Find a soldier with the Gift.
Unlocked 13 Nov, 2014 @ 8:45am

Prisoner of War

Capture a live alien.
Unlocked 23 Oct, 2014 @ 2:03am

The Gatekeeper

Stun an Outsider.
Unlocked 23 Oct, 2014 @ 6:35am

X Marks the Spot

Uncover the alien base's location.
Unlocked 24 Oct, 2014 @ 5:43am

See All, Know All

Build the Hyperwave Relay.
Unlocked 13 Nov, 2014 @ 8:44am

On the Shoulders of Giants

Build the Gollop Chamber.
Unlocked 16 Nov, 2014 @ 7:53am

Ride the Lightning

Build a Firestorm.
Unlocked 12 Nov, 2014 @ 3:20am

Eye in the Sky

Launch a Satellite.
Unlocked 21 Oct, 2014 @ 4:26pm

All Together Now

Get satellite coverage over every country on one continent.
Unlocked 25 Oct, 2014 @ 2:39pm

Hunter/Killer

In a single game, shoot down one of each alien craft.
Unlocked 16 Nov, 2014 @ 7:55am

Man No More

Build a suit of powered armor.
Unlocked 13 Nov, 2014 @ 5:33am

We Happy Few

Complete a mission without losing a soldier.
Unlocked 20 Oct, 2014 @ 3:21am

The Hardest Road

Advance one of your soldiers to Colonel rank.
Unlocked 23 Oct, 2014 @ 7:49am

Worth Every Penny

Acquire 1000 credits in one month.
Unlocked 12 Nov, 2014 @ 1:29pm

Oppenheimer

Staff the Research Labs with 80 scientists.
Unlocked 22 Nov, 2014 @ 1:30am

One Gun at a Time

Staff the Engineering Department with 80 engineers.
Unlocked 20 Nov, 2014 @ 7:27am

Skunkworks

In a single game, complete every Foundry project.
Unlocked 20 Nov, 2014 @ 7:25am

You Have 5 Seconds to Comply

Build a S.H.I.V.
Unlocked 25 Oct, 2014 @ 8:46am

Theory...

Build a Laboratory.
Unlocked 24 Oct, 2014 @ 9:57am

...and Practice.

Build a Workshop.
Unlocked 22 Oct, 2014 @ 1:46pm

Wet Work

Complete a Very Hard abduction mission in five turns or less on Classic or Impossible difficulty.
Unlocked 24 Nov, 2014 @ 6:06am

What Wonders Await

Complete a Research Project.
Unlocked 20 Oct, 2014 @ 6:08am

Up and Running

Build a base facility.
Unlocked 21 Oct, 2014 @ 7:34am

Combat Ready

Build an item.
Unlocked 20 Oct, 2014 @ 6:17am

Drums in the Deep

Gain access to the lowest level in your base.
Unlocked 23 Oct, 2014 @ 1:22am

Happy to Oblige

Fulfill a Council request.
Unlocked 21 Oct, 2014 @ 3:11pm

And Hell's Coming With Me

Successfully assault an Overseer UFO.
Unlocked 14 Nov, 2014 @ 3:47am

Off My Planet

Recover the Hyperwave Beacon.
Unlocked 24 Oct, 2014 @ 7:50am

Tables Turned

Shoot down a UFO.
Unlocked 20 Oct, 2014 @ 6:20am

And So It Begins…

Complete the tutorial mission.
Unlocked 20 Oct, 2014 @ 2:20am

The Volunteer

Make contact with the Ethereal hive mind.
Unlocked 22 Nov, 2014 @ 1:33am

Flight of the Valkyries

Win a mission with an all-female squad. Single player only.
Unlocked 20 Oct, 2014 @ 7:10am

New Friend

Complete Friends in Low Places.
Unlocked 23 Oct, 2014 @ 12:00am

Bait the Hook

Complete Confounding Light.
Unlocked 23 Oct, 2014 @ 7:49am

The Bigger They Are

Complete Gangplank.
Unlocked 24 Oct, 2014 @ 2:07am

Rising Dragon

Take your new ally into the final challenge.
Unlocked 24 Nov, 2014 @ 12:34am

Who Needs Limbs?

Augment a soldier in single player
Unlocked 23 Oct, 2014 @ 1:27am

A Little Bit Alien

Modify a soldier in single player
Unlocked 25 Oct, 2014 @ 9:05am

Enemy Within

Get a Soldier to have 5 modifications in single player
Unlocked 13 Nov, 2014 @ 7:40am

Steel Martyr

Deploy three tactical subsystems on a single soldier in single player
Unlocked 13 Nov, 2014 @ 5:33am

Apotheosis Denied

Deal with the newest global threat
Unlocked 16 Nov, 2014 @ 7:47am

They Shall Not Pass

Eliminate all alien waves
Unlocked 25 Oct, 2014 @ 1:41pm

Zom-B-Gone

Eradicate the infestation
Unlocked 14 Nov, 2014 @ 3:19pm

The Meld Squad

Field a fully enhanced squad and win the mission
Unlocked 12 Nov, 2014 @ 2:00am

Shieldbuster

Eliminate an enemy's shield and kill it on the same turn in single player
Unlocked 25 Oct, 2014 @ 10:36am

Someone Your Own Size

Kill a Muton Berserker in melee combat in single player
Unlocked 14 Nov, 2014 @ 11:26pm

Taking A Load Off

Stop a squad member from suffocating in single player
Unlocked 21 Oct, 2014 @ 4:26pm

Where in the World

Make certain of the new threat's location
Unlocked 16 Nov, 2014 @ 6:57am

Mind the Step

Jump two stories in one move in single player
Unlocked 13 Nov, 2014 @ 10:06am

Nice Cover

Use Collateral Damage to blow up a car in single player
Unlocked 14 Nov, 2014 @ 8:07am

By Our Powers Combined

Field a squad with 4 augmented soldiers, each with a different base ability and win the mission
Unlocked 30 Jan, 2018 @ 4:02am

Rise of the Machines

Field a squad consisting entirely of augmented soldiers and SHIVs (min. 4) and win the mission
Unlocked 30 Jan, 2018 @ 2:01am

Mutatis Mutandis

Field a squad where all members have at least two modifications (min. 4) and win the mission
Unlocked 16 Nov, 2014 @ 6:13am

Mental Minefield

Kill an enemy as it is psionically attacking you in single player
Unlocked 14 Nov, 2014 @ 11:57pm

Anger Management

Proc Combat Rush on the entire squad (min. 4)
Unlocked 13 Nov, 2014 @ 7:29am

Remington… Max Remington

Have your special-duty soldier kill three enemies in the same mission
Unlocked 14 Nov, 2014 @ 7:48am

G’day

Kill an elite enemy Sniper with one of your own snipers in single player
Unlocked 13 Nov, 2014 @ 12:00am

Regenerate This

Kill an elite enemy Medic with explosive damage in single player
Unlocked 13 Nov, 2014 @ 12:31am

Tingling Sensation

Kill an unseen enemy detected by a specially modified soldier in single player
Unlocked 14 Nov, 2014 @ 3:49pm

Pain in the Neck

Cause an enemy to suicide
Unlocked 24 Oct, 2014 @ 9:19am

Solid Prospect

Complete Deluge
Unlocked 26 Oct, 2014 @ 7:43am

Ours are the Furies

Complete Furies
Unlocked 13 Nov, 2014 @ 5:26am

Elite Defense

Beat a new special mission without losing any assets
Unlocked 24 Oct, 2014 @ 9:31am

All Hands on Deck

Get at least 4 kills with XCOM Base Security personnel
Unlocked 25 Oct, 2014 @ 10:03am



Meet New People. Then Kill Them.

Win a multiplayer match.

Xavier

Mind Control an Ethereal. Single player only.

Our Finest Hour

Beat the game on Impossible difficulty.

Shooting Stars

Shoot down 40 UFOs.

Bubonic

Play a multiplayer match against someone with this achievement.

A Continental Fellow

Win the game from each of the 5 starting locations.

An Army Of Four

Beat the game without buying a Squad Size upgrade (Classic+ difficulty)

Guardian of Earth

Designate a highly decorated soldier as the Volunteer
+1

1 hidden achievement remaining

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