The Orange Box achievements

44.38%

Where Cubbage Fears to Tread

Defend Little Odessa from the gunship attack.

45.68%

Bone Breaker

Kill 30 enemies with thrown physics objects.

46.59%

Hallowed Ground

Escort Gregori safely through the church cemetery.

48.49%

Submissive

Put the can in the trash.

51.61%

Revenge!

Destroy the hunter-chopper in Half-Life 2.

51.91%

Zero-Point Energy

Get the Gravity Gun in Black Mesa East.

55.22%

Heavy Weapons

Get the airboat's mounted gun.

55.62%

Friendly Fire

Knock down a turret with another turret.

60.14%

Heartbreaker

Complete Portal.

61.14%

Anchor's Aweigh!

Get the airboat.

62.05%

Partygoer

Make the correct party escort submission position decision.

68.47%

Fratricide

Do whatever it takes to survive.