Portal/Achievements
Portal achievements by rarity
Global completion percentages from Steam, rarest first
Achievements
15
Rarest
2.8%
Ultra rare (<5%)
5
Avg. completion
25%
1
Basic Science
Earn bronze medals on all Portal challenges.
2.8%
2
Rocket Science
Earn silver medals on all Portal challenges.
2.8%
3
Aperture Science
Earn gold medals on all Portal challenges.
2.8%
4
Camera Shy
Detach security cameras from the walls.
4.1%
5
Transmission Received
..?
4.3%
6
Terminal Velocity
Fall 30,000 feet.
9.0%
7
Vanilla Crazy Cake
Beat all six Portal advanced maps.
9.2%
8
Fruitcake
Beat four Portal advanced maps.
12%
9
Long Jump
Jump 300 feet.
14%
10
Cupcake
Beat two Portal advanced maps.
18%
11
Friendly Fire
Knock down a turret with another turret.
49%
12
Heartbreaker
Complete Portal.
52%
13
Partygoer
Make the correct party escort submission position decision.
55%
14
Fratricide
Do whatever it takes to survive.
63%
15
Lab Rat
Acquire the fully powered Aperture Science Handheld Portal Device.
81%
Percentages are Steam's global unlock rates across all players who own Portal, refreshed daily. See live player counts and stats for Portal.