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There are 14 achievements in Portal worth a total of 175 
on the Xbox 360 version. The PC version has one extra achievement, Transmission Received, which is not available on the Xbox 360.
General[edit]
| Picture | Name | Description | |
|---|---|---|---|
 |
Lab Rat | Acquire the fully powered Aperture Science Handheld Portal Device. | 5
|
 |
Fratricide | Do whatever it takes to survive. | 5
|
 |
Partygoer | Make the correct party escort submission position decision. | 5
|
 |
Heartbreaker | Complete Portal. | 10
|
 |
Terminal Velocity | Fall 30,000 feet. (For help, see Infinite fall flinging.) | 5
|
 |
Long Jump | Jump 300 feet. (For help, see Multi flinging.) | 5
|
 |
Cupcake | Beat two Portal advanced maps. | 10
|
 |
Fruitcake | Beat four Portal advanced maps. | 20
|
 |
Vanilla Crazy Cake | Beat all six Portal advanced maps. | 30
|
 |
Basic Science | Earn bronze medals on all Portal challenges. | 10
|
 |
Rocket Science | Earn silver medals on all Portal challenges. | 20
|
 |
Aperture Science | Earn gold medals on all Portal challenges. | 40
|
 |
Camera Shy | Detach security cameras from the walls. | 5
|
 |
Friendly Fire | Knock down a turret with another turret. | 5
|
Steam only[edit]
| Picture | Name | Description |
|---|---|---|
 |
Transmission Received | Use radios to pick up hidden signals (listed on Steam as simply "..?"). Cannot be achieved on first play through. |