| Game |
Achievement |
Points |
Unlocked |
 |
 |
STRENGTH IN NUMBERS |
1.37 |
|
| Form a team and beat an enemy team in 4v4 Versus or Scavenge. |
 |
 |
Still Alive |
1.26 |
|
| Complete Course 4 with neither you nor your co-op partner dying |
|
 |
Portal Conservation Society |
1.17 |
|
| Complete Chamber 3 in the Hard-Light Surfaces co-op course using only 5 total portal placements |
|
 |
Talent Show |
1.17 |
|
| Never lose a cube in Chamber 6 of the Mobility Gels co-op course |
|
 |
Triple Crown |
1.15 |
|
| Solve 3 co-op chambers in the Mass and Velocity course in under 60 seconds each |
|
 |
Iron Grip |
1.10 |
|
| Never lose a cube in Chamber 6 of the Mass and Velocity co-op course |
|
 |
Party of Three |
1.08 |
|
| Find the hidden companion cube in co-op test chamber |
|
 |
Smash TV |
1.06 |
|
| Break 11 test chamber monitors |
|
 |
Overclocker |
1.00 |
|
| Complete Test Chamber 10 in 70 seconds |
|
 |
Friends List With Benefits |
0.99 |
|
| While playing co-op, hug 3 different people on your friends list |
|
 |
Empty Gesture |
0.96 |
|
| Drop your co-op partner in goo while they are gesturing by removing the bridge under them |
|
 |
Professor Portal |
0.94 |
|
| After completing co-op, complete Calibration Course online with a friend who hasn’t played before |
|
 |
Four Ring Circus |
0.92 |
|
| Enter 4 different portals without touching the ground in co-op |
|
 |
LEVEL A CHARGE |
0.90 |
|
| Kill a Charger with a melee weapon while they are charging. |
|
 |
Final Transmission |
0.89 |
|
| Find the hidden signal in one of the Rat Man's dens |
|
 |
HUNTING PARTY |
0.89 |
|
| Win a game of Scavenge. |
|
 |
Narbacular Drop |
0.88 |
|
| Place a portal under your co-op partner while they are gesturing |
|
 |
TANK BURGER |
0.88 |
|
| Kill a Tank with melee weapons. |
|
 |
Schrodinger's Catch |
0.87 |
|
| Catch a blue-painted box before it touches the ground |
|
 |
STACHE WHACKER |
0.85 |
|
| Prove you are faster than Moustachio. |
|
 |
Door Prize |
0.84 |
|
| Examine all the vitrified test chamber doors |
|
 |
You Made Your Point |
0.82 |
|
| Refuse to solve the first test in Chapter 8 |
|
 |
GUARDIN' GNOME |
0.82 |
|
| Rescue Gnome Chompski from the Carnival. |
|
 |
Pit Boss |
0.81 |
|
| Show that pit who's boss |
|
 |
Pturretdactyl |
0.79 |
|
| Use an Aerial Faith Plate to launch a turret |
|
 |
Asking for Trouble |
0.77 |
|
| Taunt GLaDOS in front of a camera in each of the five co-op courses |
|
 |
Rock Portal Scissors |
0.74 |
|
| Win 3 co-op games of rock-paper-scissors in a row |
|
 |
Ship Overboard |
0.73 |
|
| Discover the missing experiment |
|
 |
DISMEMBERMENT PLAN |
0.72 |
|
| Kill 15 Infected with a single grenade launcher blast. |
|
 |
GRAVE ROBBER |
0.71 |
|
| Collect 10 items dropped by a Fallen Survivor. |
|
 |
Portrait of a Lady |
0.71 |
|
| Find a hidden portrait |
|
 |
KILL BILL |
0.67 |
|
| Have Bill sacrifice himself for the team. |
|
 |
KILLING THEM SWIFTLY TO THIS SONG |
0.64 |
|
| Play the new Midnight Riders song on a jukebox. |
|
 |
DEAD IN THE WATER |
0.64 |
|
| Kill 10 swampy Mudmen while they are in the water. |
|
 |
SUPREME SACRIFICE |
0.57 |
|
| Complete "The Sacrifice". |
|
 |
BRIDGE BURNER |
0.56 |
|
| Survive the Parish campaign. |
|
 |
You Saved Science |
0.54 |
|
| Complete all test chambers in all courses of co-op |
|
 |
WEATHERMAN |
0.52 |
|
| Survive the Hard Rain campaign. |
|
 |
Obstacle Building |
0.47 |
|
| Complete all test chambers in the Excursion Funnels co-op course |
|
 |
BURNING SENSATION |
0.47 |
|
| Ignite 50 Common Infected with incendiary ammo. |
|
 |
HEAD HONCHO |
0.46 |
|
| Decapitate 200 Infected with a melee weapon. |
|
 |
Preservation of Mass |
0.46 |
|
| Break the rules in Test Chamber 07 |
|
 |
Gesticul-8 |
0.46 |
|
| Perform all 8 gestures of your own volition in co-op |
|
 |
MIDNIGHT RIDER |
0.45 |
|
| Survive the Dark Carnival campaign. |
|
 |
Drop Box |
0.45 |
|
| Place a cube on a button without touching the cube |
|
 |
Good Listener |
0.44 |
|
| Take GLaDOS' escape advice |
|
 |
CHAIN OF COMMAND |
0.44 |
|
| Kill 100 Common Infected with the chainsaw. |
|
 |
TORCH BEARER |
0.43 |
|
| Survive The Passing Campaign. |
|
 |
Bridge Building |
0.41 |
|
| Complete all test chambers in the Hard-Light Surfaces co-op course |
|
 |
Scanned Alone |
0.40 |
|
| Stand in a defective turret detector |
|
 |
No Hard Feelings |
0.40 |
|
| Save a turret from redemption |
|
 |
Air Show |
0.37 |
|
| Perform 2 aerial gestures before touching the ground in co-op |
|
 |
The Part Where He Kills You |
0.37 |
|
| This is that part |
|
 |
Lunacy |
0.37 |
|
| That just happened |
|
 |
Tunnel of Funnel |
0.37 |
|
| Master the Excursion Funnel |
|
 |
SEPTIC TANK |
0.37 |
|
| Use a bile bomb on a Tank. |
|
 |
Dual Pit Experiment |
0.35 |
|
| Do the same test twice |
|
 |
White Out |
0.34 |
|
| Complete the first Conversion Gel test |
|
 |
Stranger Than Friction |
0.33 |
|
| Master the Propulsion Gel |
|
 |
Confidence Building |
0.33 |
|
| Complete all test chambers in the Mass and Velocity co-op course |
|
 |
CRASS MENAGERIE |
0.32 |
|
| Kill one of each Uncommon Infected. |
|
 |
Tater Tote |
0.32 |
|
| Carry science forward |
|
 |
PRICE CHOPPER |
0.31 |
|
| Survive the Dead Center campaign. |
|
 |
Vertically Unchallenged |
0.30 |
|
| Master the Repulsion Gel |
|
 |
Stalemate Associate |
0.28 |
|
| Press the button! |
|
 |
SaBOTour |
0.28 |
|
| Make a break for it |
|
 |
Team Building |
0.27 |
|
| Complete all test chambers in the Team Building co-op course |
|
 |
Bridge Over Troubling Water |
0.23 |
|
| Complete the first Hard Light Bridge test |
|
 |
ARMORY OF ONE |
0.23 |
|
| Deploy an ammo upgrade and have your team use it. |
|
 |
High Five |
0.22 |
|
| Celebrate your cooperative calibration success |
|
 |
Undiscouraged |
0.19 |
|
| Complete the first Thermal Discouragement Beam test |
|
 |
You Monster |
0.18 |
|
| Reunite with GLaDOS |
|
 |
A RIDE DENIED |
0.17 |
|
| Kill a Jockey within 2 seconds of it jumping on a Survivor. |
|
 |
ACID REFLEX |
0.16 |
|
| Kill a Spitter before she is able to spit. |
|
 |
Wake Up Call |
0.14 |
|
| Survive the manual override |