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Defiant |
| Hit the trashcan cop with the can. Unlocked: May 24, 2014 05:40 PM |
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Submissive |
| Put the can in the trash. Unlocked: July 06, 2010 07:49 PM |
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Malcontent |
| Escape the apartment block raid. Unlocked: July 06, 2010 07:54 PM |
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What cat? |
| Break the mini-teleporter in Kleiner's lab. Unlocked: April 18, 2014 07:30 AM |
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Trusty Hardware |
| Get the crowbar. Unlocked: July 06, 2010 08:04 PM |
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Barnacle Bowling |
| Kill five barnacles with one barrel. Unlocked: April 18, 2014 08:05 AM |
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Anchor's Aweigh! |
| Get the airboat. Unlocked: July 07, 2010 05:22 PM |
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Heavy Weapons |
| Get the airboat's mounted gun. Unlocked: July 11, 2010 03:48 PM |
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Vorticough |
| Discover the hidden singing vortigaunt cave in chapter Water Hazard. Unlocked: April 18, 2014 05:52 PM |
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Revenge! |
| Destroy the hunter-chopper in Half-Life 2. Unlocked: April 25, 2011 03:08 PM |
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Blast from the Past |
| Find the HEV Suit Charger faceplate in Eli's scrapyard. Unlocked: April 25, 2011 03:29 PM |
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Zero-Point Energy |
| Get the Gravity Gun in Black Mesa East. Unlocked: April 25, 2011 03:29 PM |
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Two Points |
| Use DOG's ball to make a basket in Eli's scrapyard. Unlocked: April 24, 2014 07:11 AM |
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Zombie Chopper |
| Play through Ravenholm using only the Gravity Gun. Unlocked: May 24, 2014 02:01 PM |
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Hallowed Ground |
| Escort Gregori safely through the church cemetery. Unlocked: November 05, 2012 06:05 PM |
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OSHA Violation |
| Kill 3 enemies using the crane. Unlocked: November 05, 2012 06:51 PM |
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Targetted Advertising |
| Pin a soldier to the billboard in chapter Highway 17. Unlocked: November 05, 2012 07:13 PM |
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Where Cubbage Fears to Tread |
| Defend Little Odessa from the gunship attack. Unlocked: November 05, 2012 06:44 PM |
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One Man Army |
| Destroy six gunships in Half-Life 2. Unlocked: November 06, 2012 04:51 PM |
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Keep Off the Sand! |
| Cross the antlion beach in chapter Sandtraps without touching the sand. Unlocked: May 24, 2014 04:53 PM |
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Bug Hunt |
| Use the antlions to kill 50 enemies. Unlocked: November 06, 2012 05:06 PM |
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Flushed |
| Kill an enemy with a toilet. Unlocked: May 24, 2014 03:07 PM |
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Warden Freeman |
| Survive the second turret standoff in Nova Prospekt. Unlocked: November 06, 2012 06:17 PM |
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Follow Freeman |
| Gain command of a squad of rebels in the uprising. Unlocked: November 06, 2012 06:37 PM |
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Radiation Levels Detected |
| Get through the toxic tunnel under City 17 in Half-Life 2. Unlocked: November 06, 2012 07:12 PM |
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Plaza Defender |
| Survive the generator plaza standoff in chapter Anticitizen One. Unlocked: November 06, 2012 07:35 PM |
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Counter-Sniper |
| Kill all of the snipers in City 17. Unlocked: November 07, 2012 06:59 PM |
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Fight the Power |
| Shut down the supression device by disabling its generators. Unlocked: April 15, 2014 04:13 PM |
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Giant Killer |
| Survive the rooftop strider battle in the ruins of City 17. Unlocked: April 18, 2014 06:25 AM |
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Atomizer |
| Disintegrate 15 soldiers by throwing them into a Combine ball field. Unlocked: April 18, 2014 06:51 AM |
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Singularity Collapse |
| Destroy the Citadel's reactor core. Unlocked: April 18, 2014 07:21 AM |
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Lambda Locator |
| Find all lambda caches in Half-Life 2. Unlocked: May 24, 2014 05:36 PM |
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Hack Attack! |
| Kill five enemies with a Manhack. Unlocked: May 24, 2014 04:29 PM |
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Watch Your Head! |
| Make it to the bottom of the Citadel's main elevator shaft in one piece. Unlocked: January 26, 2025 09:37 AM |
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Containment |
| Contain the Citadel core. Unlocked: January 26, 2025 09:57 AM |
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Elevator Action |
| Survive long enough to get on the parking garage elevator. Unlocked: January 26, 2025 07:15 PM |
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Live Bait |
| Help Alyx snipe 30 enemies in Episode One. Unlocked: January 26, 2025 07:38 PM |
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Attica! |
| Destroy the gunship in the hospital attic. Unlocked: January 26, 2025 08:09 PM |