The Orange Box

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

Kill an acid antlion worker.

Get the airboat.

Earn gold medals on all Portal challenges.

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

Destroy the gunship in the hospital attic.

Kill five barnacles with one barrel.

Earn bronze medals on all Portal challenges.

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

Kill 30 enemies with thrown physics objects.

Use the antlions to kill 50 enemies.

Find every radar cache in chapter Under The Radar.

Detach security cameras from the walls.

Use the cars to squash 15 antlions in Episode One.

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

Kill five enemies with the same energy ball.

Contain the Citadel core.

Kill all of the snipers in City 17.

Beat two Portal advanced maps.

Kill an enemy by planting a hopper mine.

Hit the trashcan cop with the can.

Win 20 games.

Survive long enough to get on the parking garage elevator.

Escape City 17 with Alyx.

Shut down the supression device by disabling its generators.

Set five enemies on fire in 30 seconds.

Kill an enemy with a toilet.

Gain command of a squad of rebels in the uprising.

Do whatever it takes to survive.

Knock down a turret with another turret.

Beat four Portal advanced maps.

Squish every antlion grub in Episode Two.

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

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

Steal a Zombine's grenade.

Get 25 headshots as a Sniper.

Kill five enemies with a Manhack.

Get five kills in a row without dying.

Accumulate 1000 total kills.

Play a complete round with every class.

Complete Portal.

Get the airboat's mounted gun.

Run over 20 enemies with the car in Episode Two.

Kill a Combine soldier with his own grenade.

Successfully defend Dustbowl without giving up a capture.

Successfully defend Gravel Pit without giving up a capture.

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

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

Acquire the fully powered Aperture Science Handheld Portal Device.

Find all lambda caches in Half-Life 2.

Win Well in 5 minutes or less.

Send the garden gnome into space.

Help Alyx snipe 30 enemies in Episode One.

Jump 300 feet.

Escape the apartment block raid.

Trick an opposing medic into healing you.

Save all buildings outside the missile silo from destruction.

Get five revenge kills.

Destroy six gunships in Half-Life 2.

Kill 3 enemies using the crane.

Contain the Citadel core without killing any stalkers.

Make the correct party escort submission position decision.

Kill a Hunter with its own flechettes.

Beat DOG in a race to the White Forest base.

Find and break every web cache in Episode Two.

Survive the generator plaza standoff in chapter Anticitizen One.

Win 2Fort with a shutout.

Defeat the chopper in Episode Two without any misses.

Win Hydro without giving up a capture.

Destroy the hunter-chopper in Half-Life 2.

Earn silver medals on all Portal challenges.

Put the can in the trash.

Pin a soldier to the billboard in chapter Highway 17.

Accumulate 25000 heal points as a Medic.

Fall 30,000 feet.

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

Kill an Elite Soldier with his own energy ball.

Get the crowbar.

Accumulate 10 turret kills with a single turret.

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

Beat all six Portal advanced maps.

Discover the hidden singing vortigaunt cave in chapter Water Hazard.

Survive the second turret standoff in Nova Prospekt.

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

Break the mini-teleporter in Kleiner's lab.

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

Play a complete game on every map.

Get the Gravity Gun in Black Mesa East.

Play through Ravenholm using only the Gravity Gun.

Use flares to light 15 zombies on fire.