Portal 2 achievements

51 achievements on Steam

Rarest first. Published rarity by platform.

Each platform measures its own player population.Why that matters

Each platform calculates rarity from its own player population. These percentages are shown side by side but are not a controlled comparison. Percentages are shown exactly as each platform publishes them — Pyroblast does not recalculate them or mix player populations together.

Played it? See which of these you've earned

Still AliveSteam only
Complete Course 4 with neither you nor your co-op partner dying
Steam2.4%
Talent ShowSteam only
Never lose a cube in Chamber 6 of the Mobility Gels co-op course
Steam2.6%
Portal Conservation SocietySteam only
Complete Chamber 3 in the Hard-Light Surfaces co-op course using only 5 total portal placements
Steam2.8%
Triple CrownSteam only
Solve 3 co-op chambers in the Mass and Velocity course in under 60 seconds each
Steam3.0%
Party of ThreeSteam only
Find the hidden companion cube in co-op test chamber
Steam3.5%
Iron GripSteam only
Never lose a cube in Chamber 6 of the Mass and Velocity co-op course
Steam3.6%
Smash TVSteam only
Break 11 test chamber monitors
Steam3.7%
OverclockerSteam only
Complete Test Chamber 10 in 70 seconds
Steam4.0%
Friends List With BenefitsSteam only
While playing co-op, hug 3 different people on your friends list
Steam4.5%
Empty GestureSteam only
Drop your co-op partner in goo while they are gesturing by removing the bridge under them
Steam4.6%
Final TransmissionSteam only
Find the hidden signal in one of the Rat Man's dens
Steam5.4%
Narbacular DropSteam only
Place a portal under your co-op partner while they are gesturing
Steam5.8%
Professor PortalSteam only
After completing co-op, complete Calibration Course online with a friend who hasn’t played before
Steam5.9%
You Made Your PointSteam only
Refuse to solve the first test in Chapter 8
Steam6.5%
Four Ring CircusSteam only
Enter 4 different portals without touching the ground in co-op
Steam6.8%
Schrodinger's CatchSteam only
Catch a blue-painted box before it touches the ground
Steam6.9%
Door PrizeSteam only
Examine all the vitrified test chamber doors
Steam7.2%
Pit BossSteam only
Show that pit who's boss
Steam7.9%
PturretdactylSteam only
Use an Aerial Faith Plate to launch a turret
Steam8.7%
Asking for TroubleSteam only
Taunt GLaDOS in front of a camera in each of the five co-op courses
Steam8.9%
Can't Touch ThisSteam only
Dance in front of a turret blocked by a hard light bridge in co-op
Steam9.8%
Rock Portal ScissorsSteam only
Win 3 co-op games of rock-paper-scissors in a row
Steam9.8%
Ship OverboardSteam only
Discover the missing experiment
Steam11%
Portrait of a LadySteam only
Find a hidden portrait
Steam12%
You Saved ScienceSteam only
Complete all test chambers in all courses of co-op
Steam21%
Preservation of MassSteam only
Break the rules in Test Chamber 07
Steam24%
Obstacle BuildingSteam only
Complete all test chambers in the Excursion Funnels co-op course
Steam26%
Gesticul-8Steam only
Perform all 8 gestures of your own volition in co-op
Steam27%
Good ListenerSteam only
Take GLaDOS' escape advice
Steam28%
Drop BoxSteam only
Place a cube on a button without touching the cube
Steam29%
No Hard FeelingsSteam only
Save a turret from redemption
Steam31%
Bridge BuildingSteam only
Complete all test chambers in the Hard-Light Surfaces co-op course
Steam32%
Air ShowSteam only
Perform 2 aerial gestures before touching the ground in co-op
Steam33%
LunacySteam only
That just happened
Steam34%
The Part Where He Kills YouSteam only
This is that part
Steam34%
Scanned AloneSteam only
Stand in a defective turret detector
Steam35%
Tunnel of FunnelSteam only
Master the Excursion Funnel
Steam35%
Dual Pit ExperimentSteam only
Do the same test twice
Steam37%
White OutSteam only
Complete the first Conversion Gel test
Steam38%
Stranger Than FrictionSteam only
Master the Propulsion Gel
Steam39%
Confidence BuildingSteam only
Complete all test chambers in the Mass and Velocity co-op course
Steam41%
Tater ToteSteam only
Carry science forward
Steam41%
Vertically UnchallengedSteam only
Master the Repulsion Gel
Steam43%
Stalemate AssociateSteam only
Press the button!
Steam46%
SaBOTourSteam only
Make a break for it
Steam47%
Team BuildingSteam only
Complete all test chambers in the Team Building co-op course
Steam49%
Bridge Over Troubling WaterSteam only
Complete the first Hard Light Bridge test
Steam53%
High FiveSteam only
Celebrate your cooperative calibration success
Steam59%
UndiscouragedSteam only
Complete the first Thermal Discouragement Beam test
Steam63%
You MonsterSteam only
Reunite with GLaDOS
Steam65%
Wake Up CallSteam only
Survive the manual override
Steam74%

Played Portal 2? See how many of these you've got.

Which ones you've earned — and which you're missing
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How rarity is calculated

Each platform calculates rarity from its own player population. These percentages are shown side by side but are not a controlled comparison.

Steam — Valve's published global unlock percentage across Steam owners of the game.

Percentages are shown exactly as each platform publishes them. Pyroblast does not recalculate them and does not mix player populations together. Data updated August 15, 2026.