| Achievement | Unlocked | Game | Visibility | Global Unlocks | ||
|---|---|---|---|---|---|---|
|
Cupcake
Beat two Portal advanced maps. |
Unlocked |
|
Portal | 18.4% | ||
|
Friendly Fire
Knock down a turret with another turret. |
Unlocked |
|
Portal | 49.2% | ||
|
Heartbreaker
Complete Portal. |
Unlocked |
|
Portal | 52.5% | ||
|
Partygoer
Make the correct party escort submission position decision. |
Unlocked |
|
Portal | 55.9% | ||
|
Fratricide
Do whatever it takes to survive. |
Unlocked |
|
Portal | 63.8% | ||
|
Lab Rat
Acquire the fully powered Aperture Science Handheld Portal Device. |
Unlocked |
|
Portal | 81.5% |