Portal

15 achievements

Ultra Rare×5

Very Rare×4

Rare×1

Uncommon×1

Common×4

Achievement Difficulty Distribution

5
33%

Ultra Rare

4
27%

Very Rare

1
7%

Rare

1
7%

Uncommon

4
27%

Common

Distribution of all 15 achievements by global unlock rate

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15 achievements

Basic Science

Earn bronze medals on all Portal challenges.

Ultra Rare2.8%

Rocket Science

Earn silver medals on all Portal challenges.

Ultra Rare2.8%

Aperture Science

Earn gold medals on all Portal challenges.

Ultra Rare2.8%

Camera Shy

Detach security cameras from the walls.

Ultra Rare4.1%

Transmission Received

..?

Ultra Rare4.3%

Terminal Velocity

Fall 30,000 feet.

Very Rare9.0%

Vanilla Crazy Cake

Beat all six Portal advanced maps.

Very Rare9.2%

Fruitcake

Beat four Portal advanced maps.

Very Rare12.0%

Long Jump

Jump 300 feet.

Very Rare14.1%

Cupcake

Beat two Portal advanced maps.

Rare18.1%

Friendly Fire

Knock down a turret with another turret.

Uncommon48.6%

Heartbreaker

Complete Portal.

Common52.1%

Partygoer

Make the correct party escort submission position decision.

Common55.5%

Fratricide

Do whatever it takes to survive.

Common63.2%

Lab Rat

Acquire the fully powered Aperture Science Handheld Portal Device.

Common81.0%