Achievement Unlocked Game Visibility Global Unlocks
Son of a Nutcracker!
Hit an opponent with a snowball in Lockdown. 		2011-12-28 15:46:29
Spiral Knights 5.0%
KABOOOM!
Push the bomb cart in Helms Deep. 		2011-08-25 12:37:36
Age of Chivalry 12.9%
Armory Access
Unlock all the available weapons. 		2011-08-14 12:20:08
Alien Swarm 22.0%
Slaughter Soldier
Kill 250 Swarm with a Chainsaw. 		2011-08-14 12:10:12
Alien Swarm 16.6%
Pistols Expert
Kill 250 Swarm with Twin Pistols. 		2011-08-13 08:56:00
Alien Swarm 16.9%
Stay Frosty
Freeze 6 Swarm with a single Freeze Grenade. 		2011-08-12 15:48:15
Alien Swarm 20.2%
Hornet Barrage Expert
Kill 100 Swarm with Hornet Barrages. 		2011-08-12 15:26:01
Alien Swarm 17.3%
Scrambled Eggs
Destroy all Swarm Eggs in a mission without allowing any to hatch. 		2011-08-12 08:26:31
Alien Swarm 27.5%
Easy Campaign
Complete the Jacob's Rest campaign on Easy difficulty or harder. 		2011-08-12 08:17:13
Alien Swarm 29.9%
Infestation Savior
Cure an Infested marine. 		2011-08-12 08:16:04
Alien Swarm 29.8%
Pyrotechnician
Kill 250 Swarm with a Flamethrower. 		2011-08-12 08:02:19
Alien Swarm 23.7%
Small Arms Specialist
Kill 250 Swarm with PDWs. 		2011-08-12 07:47:19
Alien Swarm 18.8%
Smoking Barrels
Kill 5 Swarm with explosive barrels in a single mission. 		2011-08-12 07:42:11
Alien Swarm 27.5%
Parasite Puncher
Kill a Swarm Parasite with a melee attack. 		2011-08-11 14:30:29
Alien Swarm 28.0%
Close Encounters
Kill 20 Swarm with melee attacks in a single mission. 		2011-08-11 14:01:26
Alien Swarm 32.7%
On the Ready Line
Kill 1,000 Swarm. 		2011-08-11 12:00:06
Alien Swarm 32.3%
Under the Gun
Roll under a Swarm Ranger projectile. 		2011-08-11 09:23:51
Alien Swarm 35.8%
Autogun Expert
Kill 250 Swarm with an Autogun. 		2011-08-11 08:54:13
Alien Swarm 26.0%
Shield Down
Deliver the finishing blow to a Swarm Shieldbug. 		2011-08-11 08:02:06
Alien Swarm 43.8%
Quick and Dead
Kill a Swarm Boomer before it inflates. 		2011-08-10 18:21:16
Alien Swarm 48.0%
Sharpshooter
Complete a mission with better than 90% accuracy. 		2011-08-10 17:59:45
Alien Swarm 33.1%
Seal of Quality
Seal a door with the welder. 		2011-08-10 17:58:01
Alien Swarm 39.1%
Protect the Tech
Guard the squad's tech so that he takes no damage during the hack. 		2011-08-10 08:48:05
Alien Swarm 41.7%
Clear Firing
Kill 25 drones without friendly fire. Four marines must be present in the mission. 		2011-08-10 08:48:02
Alien Swarm 34.8%
Quick Load
Successfully perform a fast reload. 		2011-08-10 08:48:00
Alien Swarm 40.8%
Hat Trick
Complete 2 co-op missions online. Earns a Team Fortress 2 parasite hat. 		2011-08-10 08:45:32
Alien Swarm 55.7%
Technician Secured
Finish a mission without the tech getting killed. 		2011-08-10 08:39:20
Alien Swarm 56.2%
Zero Mortality
Complete a mission on Normal difficulty or harder without any marines dying. 		2011-08-10 08:39:19
Alien Swarm 37.1%
Triple Crown
Solve 3 co-op chambers in the Mass and Velocity course in under 60 seconds each 		2011-08-07 15:04:22
Portal 2 3.0%
Friends List With Benefits
While playing co-op, hug 3 different people on your friends list 		2011-08-07 15:00:13
Portal 2 4.4%
Overclocker
Complete Test Chamber 10 in 70 seconds 		2011-08-07 14:55:23
Portal 2 4.0%
Tater Tote
Carry science forward 		2011-08-07 14:20:22
Portal 2 42.5%
Door Prize
Examine all the vitrified test chamber doors 		2011-08-07 14:18:59
Portal 2 7.5%
Talent Show
Never lose a cube in Chamber 6 of the Mobility Gels co-op course 		2011-08-05 19:01:39
Portal 2 2.6%
Portal Conservation Society
Complete Chamber 3 in the Hard-Light Surfaces co-op course using only 5 total portal placements 		2011-08-05 18:41:19
Portal 2 2.7%
You Saved Science
Complete all test chambers in all courses of co-op 		2011-08-05 18:27:39
Portal 2 21.3%
Confidence Building
Complete all test chambers in the Mass and Velocity co-op course 		2011-08-05 18:27:39
Portal 2 41.1%
Iron Grip
Never lose a cube in Chamber 6 of the Mass and Velocity co-op course 		2011-08-05 18:20:13
Portal 2 3.6%
Pturretdactyl
Use an Aerial Faith Plate to launch a turret 		2011-08-04 09:14:59
Portal 2 9.1%
Can't Touch This
Dance in front of a turret blocked by a hard light bridge in co-op 		2011-08-04 07:55:34
Portal 2 10.0%
Gesticul-8
Perform all 8 gestures of your own volition in co-op 		2011-08-03 13:33:30
Portal 2 27.3%
Asking for Trouble
Taunt GLaDOS in front of a camera in each of the five co-op courses 		2011-08-03 13:31:07
Portal 2 9.1%
Four Ring Circus
Enter 4 different portals without touching the ground in co-op 		2011-08-03 13:28:51
Portal 2 6.9%
Narbacular Drop
Place a portal under your co-op partner while they are gesturing 		2011-08-03 13:21:32
Portal 2 5.9%
Obstacle Building
Complete all test chambers in the Excursion Funnels co-op course 		2011-08-03 13:20:33
Portal 2 26.5%
Still Alive
Complete Course 4 with neither you nor your co-op partner dying 		2011-08-03 13:19:59
Portal 2 2.4%
Party of Three
Find the hidden companion cube in co-op test chamber 		2011-08-03 12:50:40
Portal 2 3.6%
Empty Gesture
Drop your co-op partner in goo while they are gesturing by removing the bridge under them 		2011-08-03 11:22:59
Portal 2 4.6%
Rock Portal Scissors
Win 3 co-op games of rock-paper-scissors in a row 		2011-08-03 08:17:30
Portal 2 9.9%
Scanned Alone
Stand in a defective turret detector 		2011-08-03 07:39:48
Portal 2 35.9%
You Made Your Point
Refuse to solve the first test in Chapter 8 		2011-08-02 09:29:54
Portal 2 6.8%
Final Transmission
Find the hidden signal in one of the Rat Man's dens 		2011-08-02 09:24:26
Portal 2 5.7%
Lunacy
That just happened 		2011-08-02 08:49:00
Portal 2 35.3%
Team Building
Complete all test chambers in the Team Building co-op course 		2011-08-02 08:35:29
Portal 2 49.6%
Air Show
Perform 2 aerial gestures before touching the ground in co-op 		2011-08-01 14:18:59
Portal 2 33.9%
Bridge Building
Complete all test chambers in the Hard-Light Surfaces co-op course 		2011-08-01 12:57:34
Portal 2 32.2%
High Five
Celebrate your cooperative calibration success 		2011-08-01 09:38:34
Portal 2 58.8%
Pit Boss
Show that pit who's boss 		2011-08-01 08:43:45
Portal 2 8.0%
The Part Where He Kills You
This is that part 		2011-08-01 08:42:59
Portal 2 35.6%
Tunnel of Funnel
Master the Excursion Funnel 		2011-08-01 08:34:24
Portal 2 36.4%
Dual Pit Experiment
Do the same test twice 		2011-07-31 10:39:07
Portal 2 38.3%
White Out
Complete the first Conversion Gel test 		2011-07-31 08:48:10
Portal 2 39.7%
Stranger Than Friction
Master the Propulsion Gel 		2011-07-31 08:28:14
Portal 2 40.9%
Portrait of a Lady
Find a hidden portrait 		2011-07-31 08:16:17
Portal 2 12.1%
Ship Overboard
Discover the missing experiment 		2011-07-30 13:08:05
Portal 2 11.0%
Vertically Unchallenged
Master the Repulsion Gel 		2011-07-30 12:42:20
Portal 2 44.5%
Stalemate Associate
Press the button! 		2011-07-30 10:12:52
Portal 2 47.2%
No Hard Feelings
Save a turret from redemption 		2011-07-30 09:54:49
Portal 2 31.9%
Good Listener
Take GLaDOS' escape advice 		2011-07-30 09:46:18
Portal 2 29.4%
SaBOTour
Make a break for it 		2011-07-30 09:45:23
Portal 2 48.2%
Bridge Over Troubling Water
Complete the first Hard Light Bridge test 		2011-07-30 08:55:36
Portal 2 55.2%
Preservation of Mass
Break the rules in Test Chamber 07 		2011-07-30 08:41:50
Portal 2 25.2%
Drop Box
Place a cube on a button without touching the cube 		2011-07-30 08:36:48
Portal 2 29.7%
Undiscouraged
Complete the first Thermal Discouragement Beam test 		2011-07-30 08:23:45
Portal 2 64.6%
You Monster
Reunite with GLaDOS 		2011-07-30 08:17:44
Portal 2 66.7%
Wake Up Call
Survive the manual override 		2011-07-29 19:38:52
Portal 2 75.9%
Leave No Stone Unturned
Collect 45 enemy intel items. 		2011-06-30 10:59:08
Call of Duty: Modern Warfare 2 (2009) 3.3%
Off the Grid
Complete 'Just Like Old Times' and 'Endgame' on Veteran Difficulty. 		2011-06-30 10:10:46
Call of Duty: Modern Warfare 2 (2009) 7.9%
The Price of War
Complete the single player campaign on Hardened or Veteran Difficulty. 		2011-06-30 10:10:46
Call of Duty: Modern Warfare 2 (2009) 14.9%
Queen takes Rook
Complete 'Loose Ends' and 'The Enemy of My Enemy' on Veteran Difficulty. 		2011-06-30 09:20:39
Call of Duty: Modern Warfare 2 (2009) 7.1%
Homecoming
Complete 'Of Their Own Accord', 'Second Sun', and 'Whiskey Hotel' on Veteran Difficulty. 		2011-06-28 14:03:58
Call of Duty: Modern Warfare 2 (2009) 7.9%
The Road Less Traveled
Collect 22 enemy intel items. 		2011-06-27 09:13:12
Call of Duty: Modern Warfare 2 (2009) 5.5%
Drive By
Kill 20 enemies in a row while driving a vehicle in Single Player or Special Ops. 		2011-06-26 11:39:36
Call of Duty: Modern Warfare 2 (2009) 18.0%
Ghost
Plant the C4 in 'Cliffhanger' without alerting or injuring anyone in the blizzard. 		2011-06-26 11:35:02
Call of Duty: Modern Warfare 2 (2009) 4.5%
Pit Boss
Run The Pit in 'S.S.D.D.' and finish with a final time under 30 seconds. 		2011-06-26 11:17:03
Call of Duty: Modern Warfare 2 (2009) 8.4%
Ends Justify the Means
Complete 'Contingency' on Veteran Difficulty. 		2011-06-26 10:54:57
Call of Duty: Modern Warfare 2 (2009) 8.0%
Prisoner #627
Complete 'The Only Easy Day... Was Yesterday' and 'The Gulag' on Veteran Difficulty. 		2011-06-26 10:04:42
Call of Duty: Modern Warfare 2 (2009) 9.1%
Downed but Not Out
Kill 4 enemies in a row while downed in Special Ops. 		2011-06-25 14:16:01
Call of Duty: Modern Warfare 2 (2009) 6.1%
Red Dawn
Complete 'Wolverines!' and 'Exodus' on Veteran Difficulty. 		2011-06-25 09:14:16
Call of Duty: Modern Warfare 2 (2009) 9.2%
Turistas
Complete 'Takedown' and 'The Hornet's Nest' on Veteran Difficulty. 		2011-06-24 14:23:53
Call of Duty: Modern Warfare 2 (2009) 9.7%
Black Diamond
Complete 'Cliffhanger' on Veteran Difficulty. 		2011-06-21 13:08:44
Call of Duty: Modern Warfare 2 (2009) 14.2%
First Day of School
Complete 'S.S.D.D.' and 'Team Player' on Veteran Difficulty. 		2011-06-21 12:47:38
Call of Duty: Modern Warfare 2 (2009) 13.0%
Jump Start
Revive yourself. 		2011-06-20 14:46:27
Spiral Knights 25.9%
Mission Accomplished
Reach the first Clockworks Terminal. 		2011-06-20 14:43:43
Spiral Knights 25.1%
Welcome, Stranger
Cross the chasm into Haven. 		2011-06-19 11:15:30
Spiral Knights 51.3%
First Steps
Successfully reach the Rescue Camp. 		2011-06-18 17:04:21
Spiral Knights 77.9%
Star 69
Earn 69 stars in Special Ops. 		2011-03-02 14:31:04
Call of Duty: Modern Warfare 2 (2009) 3.4%
Desperado
Kill 5 enemies in a row using 5 different weapons or attachments in Single Player or Special Ops. 		2011-02-25 12:03:57
Call of Duty: Modern Warfare 2 (2009) 21.5%
Honor Roll
Earn at least 1 star in each Special Op mission. 		2011-02-11 15:36:11
Call of Duty: Modern Warfare 2 (2009) 4.4%
I'm the Juggernaut…
Kill a Juggernaut in Special Ops. 		2011-02-09 16:21:28
Call of Duty: Modern Warfare 2 (2009) 27.7%
Knock-knock
Kill 4 enemies with 4 shots during a slow-mo breach in Single Player or Special Ops. 		2011-02-09 14:47:51
Call of Duty: Modern Warfare 2 (2009) 27.7%
Professional
Earn all 3 stars in at least 15 different Special Op missions. 		2011-02-09 12:40:46
Call of Duty: Modern Warfare 2 (2009) 9.0%
Operative
Earn all 3 stars in at least 10 different Special Op missions. 		2011-02-08 19:30:01
Call of Duty: Modern Warfare 2 (2009) 14.4%
Specialist
Earn 30 stars in Special Ops. 		2011-02-08 19:10:33
Call of Duty: Modern Warfare 2 (2009) 17.4%
Operational Asset
Earn all 3 stars in at least 5 different Special Op missions. 		2011-02-08 18:32:14
Call of Duty: Modern Warfare 2 (2009) 19.7%
Blackjack
Earn 21 stars in Special Ops. 		2011-02-08 18:27:26
Call of Duty: Modern Warfare 2 (2009) 22.8%
It Goes to Eleven
Earn at least 1 star in 11 different Special Op missions. 		2011-02-08 18:20:57
Call of Duty: Modern Warfare 2 (2009) 24.1%
For the Record
Complete the Single Player campaign on any difficulty. 		2011-02-07 18:49:58
Call of Duty: Modern Warfare 2 (2009) 48.5%
Unnecessary Roughness
Use a riot shield to beat down an enemy in Single Player or Special Ops. 		2011-02-07 18:35:01
Call of Duty: Modern Warfare 2 (2009) 46.1%
Out of the Frying Pan…
Complete the mission in the airplane graveyard. 		2011-02-07 16:27:19
Call of Duty: Modern Warfare 2 (2009) 43.2%
The Pawn
Assault Makarov's safe house. 		2011-02-07 15:27:21
Call of Duty: Modern Warfare 2 (2009) 41.7%
Whiskey Hotel
Take back Whiskey Hotel. 		2011-02-07 15:07:43
Call of Duty: Modern Warfare 2 (2009) 44.3%
Desperate Times
Execute the plan to help the Americans. 		2011-02-06 20:13:01
Call of Duty: Modern Warfare 2 (2009) 45.6%
Soap on a Rope
Storm the gulag. 		2011-02-06 19:40:10
Call of Duty: Modern Warfare 2 (2009) 49.1%
Charlie On Our Six
Earn 8 stars in Special Ops. 		2011-02-06 11:55:53
Call of Duty: Modern Warfare 2 (2009) 38.0%
Hotel Bravo
Earn 4 stars in Special Ops. 		2011-02-06 11:49:12
Call of Duty: Modern Warfare 2 (2009) 41.4%
The Harder They Fall
Kill 2 rappelling enemies in a row before they land on their feet in Single Player or Special Ops. 		2011-02-05 09:51:47
Call of Duty: Modern Warfare 2 (2009) 49.7%
Gold Star
Earn 1 star in Special Ops. 		2011-02-05 08:38:13
Call of Duty: Modern Warfare 2 (2009) 54.6%
Some Like it Hot
Kill 6 enemies in a row using a thermal weapon in Single Player or Special Ops. 		2011-02-05 08:22:37
Call of Duty: Modern Warfare 2 (2009) 56.4%
Colonel Sanderson
Kill 7 chickens in under 10 seconds in 'The Hornet's Nest'. 		2011-02-04 19:21:43
Call of Duty: Modern Warfare 2 (2009) 10.4%
Look Ma Two Hands
Kill 10 enemies in a row using akimbo weapons in Single Player or Special Ops. 		2011-02-04 19:07:54
Call of Duty: Modern Warfare 2 (2009) 21.1%
Royale with Cheese
Defend Burger Town. 		2011-02-04 19:04:59
Call of Duty: Modern Warfare 2 (2009) 58.5%
Ten plus foot-mobiles
Kill at least 10 enemies with one Predator missile in Single Player or Special Ops. 		2011-02-04 18:58:29
Call of Duty: Modern Warfare 2 (2009) 60.9%
Tag 'em and bag 'em
Find Rojas in the Favelas. 		2011-02-04 18:44:43
Call of Duty: Modern Warfare 2 (2009) 56.3%
Three-some
Kill at least 3 enemies with a single shot from a grenade launcher in Single Player or Special Ops. 		2011-02-03 15:56:59
Call of Duty: Modern Warfare 2 (2009) 66.7%
Cold Shoulder
Infiltrate the snowy mountain side base. 		2011-02-03 15:51:53
Call of Duty: Modern Warfare 2 (2009) 62.6%
No Rest For the Wary
Knife an enemy without him ever knowing you were there in Single Player or Special Ops. 		2011-02-03 15:41:59
Call of Duty: Modern Warfare 2 (2009) 35.8%
Danger Close
Get hand picked for Shepherd's elite squad. 		2011-02-03 15:36:12
Call of Duty: Modern Warfare 2 (2009) 62.1%
Two Birds with One Stone
Kill 2 enemies with a single bullet in Single Player or Special Ops. 		2011-02-03 15:31:45
Call of Duty: Modern Warfare 2 (2009) 71.4%
Back in the Saddle
Help train the local militia. 		2011-02-03 15:27:16
Call of Duty: Modern Warfare 2 (2009) 65.7%
DE: Fix the road from Burgau to Zusmarshausen
DE: Fix the road from Burgau to Zusmarshausen 		Unlocked
LOGistICAL 20.8%
Complete Krumbach, Germany
Complete Krumbach, Germany 		Unlocked
LOGistICAL 19.4%