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CL0WND |
Honk the noses of 10 Clowns. |
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FRIED PIPER |
Using a Molotov, burn a Clown leading at least 10 Common Infected. |
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LEVEL A CHARGE |
Kill a Charger with a melee weapon while they are charging. Unlocked: September 15, 2010 10:26 PM |
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ACID REFLEX |
Kill a Spitter before she is able to spit. |
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CONFEDERACY OF CRUNCHES |
Finish a campaign using only melee weapons. |
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CRASS MENAGERIE |
Kill one of each Uncommon Infected. |
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A RIDE DENIED |
Kill a Jockey within 2 seconds of it jumping on a Survivor. |
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HEAD HONCHO |
Decapitate 200 Infected with a melee weapon. |
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HEARTWARMER |
In a Versus round, leave the saferoom to defibrillate a dead teammate. Unlocked: September 15, 2010 09:59 PM |
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STILL SOMETHING TO PROVE |
Survive all campaigns on Expert. Unlocked: November 02, 2010 12:32 AM |
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THE REAL DEAL |
Survive a campaign on Expert skill with Realism mode enabled. Unlocked: October 22, 2010 04:04 AM |
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STRENGTH IN NUMBERS |
Form a team and beat an enemy team in 4v4 Versus or Scavenge. Unlocked: November 17, 2010 11:04 PM |
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DEAD IN THE WATER |
Kill 10 swampy Mudmen while they are in the water. |
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ROBBED ZOMBIE |
Collect 10 vials of Boomer vomit from infected CEDA agents you have killed. |
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DISMEMBERMENT PLAN |
Kill 15 Infected with a single grenade launcher blast. Unlocked: June 03, 2010 07:04 PM |
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BURNING SENSATION |
Ignite 50 Common Infected with incendiary ammo. |
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ARMORY OF ONE |
Deploy an ammo upgrade and have your team use it. |
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SHOCK JOCK |
Revive 10 dead Survivors with the defibrillator. Unlocked: June 17, 2010 11:42 PM |
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THE QUICK AND THE DEAD |
Revive 10 incapacitated Survivors while under the speed-boosting effects of adrenaline. Unlocked: May 30, 2010 09:41 AM |
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CHAIN OF COMMAND |
Kill 100 Common Infected with the chainsaw. |
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SEPTIC TANK |
Use a bile bomb on a Tank. |
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CLUB DEAD |
Use every melee weapon to kill Common Infected. |
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TANK BURGER |
Kill a Tank with melee weapons. |
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BRIDGE OVER TREBLED SLAUGHTER |
Cross the bridge finale in less than three minutes. |
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PRICE CHOPPER |
Survive the Dead Center campaign. |
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MIDNIGHT RIDER |
Survive the Dark Carnival campaign. |
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RAGIN' CAJUN |
Survive the Swamp Fever campaign. |
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WEATHERMAN |
Survive the Hard Rain campaign. |
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BRIDGE BURNER |
Survive the Parish campaign. |
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VIOLENCE IN SILENCE |
Navigate the impound lot and reach the cemetery safe room without tripping any alarms. |
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GUARDIN' GNOME |
Rescue Gnome Chompski from the Carnival. |
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SOB STORY |
Navigate the sugar mill and reach the safe room without killing any Witches. |
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WING AND A PRAYER |
Defend yourself at the crashed airliner without taking damage. |
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QUALIFIED RIDE |
As the Jockey, ride a Survivor for more than 12 seconds. |
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BACK IN THE SADDLE |
As the Jockey, ride the Survivors twice in a single life. |
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RODE HARD, PUT AWAY WET |
As the Jockey, ride a Survivor and steer them into a Spitter's acid patch. |
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GREAT EXPECTORATIONS |
As the Spitter, hit every Survivor with a single acid patch. |
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A SPITTLE HELP FROM MY FRIENDS |
As the Spitter, spit on a Survivor being choked by a Smoker. |
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SCATTERING RAM |
As the Charger, bowl through the entire enemy team in a single charge. |
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MEAT TENDERIZER |
As the Charger, grab a Survivor and smash them into the ground for a solid 15 seconds. |
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LONG DISTANCE CARRIER |
As the Charger, grab a Survivor and carry them over 80 feet. |
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BEAT THE RUSH |
In a Survival round, get a medal only using melee weapons. |
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HUNTING PARTY |
Win a game of Scavenge. |
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GAS GUZZLER |
Collect 100 gas cans in Scavenge. |
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CACHE AND CARRY |
Collect 15 gas cans in a single Scavenge round. |
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SCAVENGE HUNT |
Stop the enemy team from collecting any gas cans during a Scavenge round. |
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GONG SHOW |
Prove you are stronger than Moustachio. |
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FUEL CRISIS |
Make a Survivor drop a gas can during overtime. |
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GAS SHORTAGE |
Cause 25 gas can drops as a Special Infected. |
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STACHE WHACKER |
Prove you are faster than Moustachio. |
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TORCH BEARER |
Survive The Passing Campaign. |
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WEDDING CRASHER |
As the Charger, grab a Survivor and crash them through 8 chairs at the wedding. Unlocked: June 05, 2010 03:13 AM |
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TIL IT GOES CLICK |
Using the M60, kill 25 infected without letting go of the trigger. |
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GRAVE ROBBER |
Collect 10 items dropped by a Fallen Survivor. |
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MUTANT OVERLORD |
Play 6 Mutations. Unlocked: July 12, 2010 03:07 PM |
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FORE! |
Knock off the heads of 18 infected with the golf club. |
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KILLING THEM SWIFTLY TO THIS SONG |
Play the new Midnight Riders song on a jukebox. |
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KITE LIKE A MAN |
Kill a Tank only with damage from the original Survivors. |
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CACHE GRAB |
Open 5 foot lockers. |
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PORT OF SCAVENGE |
Play 5 full games of Scavenge on The Port. Unlocked: May 31, 2010 04:22 PM |
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SUPREME SACRIFICE |
Complete "The Sacrifice". Unlocked: October 06, 2010 03:53 AM |
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KILL BILL |
Have Bill sacrifice himself for the team. Unlocked: October 06, 2010 03:53 AM |
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BARREL ROLLED |
Kill a Special Infected with an exploding barrel. Unlocked: October 06, 2010 11:59 PM |
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CHAOS GENERATOR |
Have all 3 generators running at once in "The Sacrifice" finale. Unlocked: October 10, 2010 05:38 PM |
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SACRIFIZZLE |
As a Special Infected, incap someone who is trying to sacrifice themselves. Unlocked: October 10, 2010 06:13 PM |
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STREAM CROSSER |
Survive the Cold Stream campaign on any difficulty. Unlocked: July 07, 2011 11:34 PM |
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CONNECTING FIGHTS |
Play a Versus game on Dead Air from start to finish. Unlocked: August 06, 2011 06:58 PM |
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Valve Gift Grab 2011 – L4D2 |
Collect three gifts dropped by Special Infected in Versus Mode. Unlocked: December 17, 2011 01:07 AM |
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GOOD GUY NICK |
Plays games with free weekend players and helps them survive a campaign. Unlocked: October 26, 2012 09:44 PM |
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GHOST OF CHRISTMAS PRESENT |
Spread cheer by helping a free holiday player survive a campaign. Unlocked: December 26, 2013 02:13 AM |
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GETTING STARTED |
Earn a bronze medal on any official Survival map. Unlocked: December 21, 2020 10:01 PM |
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STILL STANDING |
Survive The Last Stand campaign on any difficulty. Unlocked: November 26, 2020 11:28 PM |
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GOLDEN FREEMAN |
Find the golden crowbars hidden in the Left 4 Dead 1 survival maps. Unlocked: December 22, 2020 05:52 PM |
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ELEPHANT IN THE ROOM |
Revive an incapacitated teammate while a Tank is nearby. Unlocked: November 05, 2020 11:34 PM |
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GET SKEETED ON |
Kill a pouncing Hunter with a shotgun. Unlocked: December 22, 2020 04:57 PM |
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ROCKY HORROR PICTURE THROW |
Destroy a Tank's rock in mid-air. Unlocked: November 29, 2020 02:48 PM |
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SHOTGUN WEDDING |
Kill the Witch bride with a single shotgun blast on expert difficulty. Unlocked: December 02, 2020 10:43 PM |
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HOUSEHOLD NAMES |
Discover the hidden room in the Last Stand campaign Unlocked: December 22, 2020 06:22 PM |
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NEW HAIRCUT |
Kill a Witch using only a sharp melee weapon, without anyone getting incapacitated or killed. Unlocked: November 29, 2020 02:36 PM |
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THE MAIN ATTRACTION |
On the concert finale, survive until the helicopter arrives without leaving the stage Unlocked: November 28, 2020 07:20 PM |
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THE LAST DASH |
Complete The Last Stand campaign in 13 minutes or less, without any Survivors dying. Unlocked: November 26, 2020 11:47 PM |
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GNOME ALONE |
If you are reading this achievement, Gabe Newell has successfully launched Gnome Chompski into space. Unlocked: November 20, 2020 09:50 PM |