Complete each condition to get the allotted Achievement.
Achievement Description Aperture Science Earn gold medals on all Portal challenges. Basic Science Earn bronze medals on all Portal challenges. Camera Shy Detach security cameras from the walls. Cupcake Beat two Portal advanced maps. Fratricide Do whatever it takes to survive. Friendly Fire Knock down a turret with another turret. Fruitcake Beat four Portal advanced maps. Heartbreaker Complete Portal. Lab Rat Acquire the fully powered Aperture Science Handheld Portal Device. Long Jump Jump 300 feet. Partygoer Make the correct party escort submission position decision. Rocket Science Earn silver medals on all Portal challenges. Terminal Velocity Fall 30,000 feet. Transmission Received Find and recieve all 26 radio transmissions Vanilla Crazy Cake Beat all six Portal advanced maps.
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You can submit a problem report for any non-working or fake item in the lists above.