The Orange Box


Common

Kill 30 enemies with thrown physics objects.


Uncommon

Kill an enemy by planting a hopper mine.


Rare

Rare

Kill a Combine soldier with his own grenade.


Rare

Kill five enemies with the same energy ball.


Rare

Kill an Elite Soldier with his own energy ball.


Uncommon

Rare

Use flares to light 15 zombies on fire.


Common

Defiant

5 Secret

Hit the trashcan cop with the can.


Common

Submissive

5 Secret

Common

Uncommon

Break the mini-teleporter in Kleiner's lab.


Uncommon

Kill five barnacles with one barrel.


Common

Rare

Discover the hidden singing vortigaunt cave in chapter Water Hazard.


Common

Destroy the hunter-chopper in Half-Life 2.


Rare

Find the HEV Suit Charger faceplate in Eli's scrapyard.


Common

Get the Gravity Gun in Black Mesa East.


Uncommon

Use DOG's ball to make a basket in Eli's scrapyard.


Rare

Play through Ravenholm using only the Gravity Gun.


Common

Hallowed Ground

5 Secret

Escort Gregori safely through the church cemetery.


Uncommon

Rare

Pin a soldier to the billboard in chapter Highway 17.


Uncommon

Defend Little Odessa from the gunship attack.


Uncommon

Destroy six gunships in Half-Life 2.


Rare

Cross the antlion beach in chapter Sandtraps without touching the sand.


Uncommon

Use the antlions to kill 50 enemies.


Rare

Uncommon

Survive the second turret standoff in Nova Prospekt.


Uncommon

Get through the toxic tunnel under City 17 in Half-Life 2.


Uncommon

Survive the generator plaza standoff in chapter Anticitizen One.


Rare

Kill all of the snipers in City 17.


Uncommon

Shut down the supression device by disabling its generators.


Uncommon

Survive the rooftop strider battle in the ruins of City 17.


Uncommon

Destroy the Citadel's reactor core.


Ultra Rare

Find all lambda caches in Half-Life 2.


Uncommon

Make it to the bottom of the Citadel's main elevator shaft in one piece.


Uncommon

Rare

Contain the Citadel core without killing any stalkers.


Rare

Use the cars to squash 15 antlions in Episode One.


Uncommon

Survive long enough to get on the parking garage elevator.


Rare

Help Alyx snipe 30 enemies in Episode One.


Uncommon

Destroy the gunship in the hospital attic.


Rare

Don't let any citizens die when escorting them to the escape train.


Rare

Beat Episode One firing exactly one bullet. Grenade, crowbar, rocket, and Gravgun kills are okay!


Uncommon

Ultra Rare

Squish every antlion grub in Episode Two.


Rare

Find and break every web cache in Episode Two.


Uncommon

Help Griggs and Sheckley hold off the antlion invasion inside the mine shaft.


Uncommon

Twofer

5 Secret

Defeat both antlion guards outside the White Forest.


Rare

Run over 20 enemies with the car in Episode Two.


Uncommon

Meet the Hunters

10 Secret

Survive the Hunter ambush with Alyx.


Rare

Defeat the chopper in Episode Two without any misses.


Rare

Gunishment!

5 Secret

Destroy the Combine cannon in the junkyard.


Rare

Find every radar cache in chapter Under The Radar.


Rare

Unlock the rocket launcher lambda cache in chapter Under The Radar.


Rare

Beat DOG in a race to the White Forest base.


Rare

Survive the ambush at White Forest Inn.


Ultra Rare

Rare

Secure the launch doors on missile silo 2.


Ultra Rare

Save all buildings outside the missile silo from destruction.


Rare

Save the missile silo from the Combine offensive.


Rare

Payback

10

Kill a Hunter with its own flechettes.


Common

Acquire the fully powered Aperture Science Handheld Portal Device.


Common

Do whatever it takes to survive.


Common

Make the correct party escort submission position decision.


Rare

Cupcake

10

Beat two Portal advanced maps.


Rare

Beat four Portal advanced maps.


Rare

Ultra Rare

Earn bronze medals on all Portal challenges.


Ultra Rare

Earn silver medals on all Portal challenges.


Ultra Rare

Earn gold medals on all Portal challenges.


Rare

Turret

5

Accumulate 10 turret kills with a single turret.


Rare

Get five kills in a row without dying.


Rare

Trick an opposing medic into healing you.


Rare

Play in a game with seven or more players from your friends list.


Ultra Rare

Rare

Win Hydro without giving up a capture.


Rare

Successfully defend Dustbowl without giving up a capture.


Rare

Successfully defend Gravel Pit without giving up a capture.


Rare

Play a complete round with every class.


Rare

Rare

Accumulate 25000 heal points as a Medic.


Rare

Set five enemies on fire in 30 seconds.


Rare

Disintegrate 15 soldiers by throwing them into a Combine ball field.


Uncommon

Gain command of a squad of rebels in the uprising.


Rare

Rare

Detach security cameras from the walls.


Common

Knock down a turret with another turret.

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Platform
Xbox 360