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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. |
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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. |
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STILL SOMETHING TO PROVE |
| Survive all campaigns on Expert. |
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THE REAL DEAL |
| Survive a campaign on Expert skill with Realism mode enabled. |
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STRENGTH IN NUMBERS |
| Form a team and beat an enemy team in 4v4 Versus or Scavenge. |
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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. |
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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. |
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THE QUICK AND THE DEAD |
| Revive 10 incapacitated Survivors while under the speed-boosting effects of adrenaline. |
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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. |
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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. |
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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. |
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SUPREME SACRIFICE |
| Complete "The Sacrifice". |
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KILL BILL |
| Have Bill sacrifice himself for the team. |
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BARREL ROLLED |
| Kill a Special Infected with an exploding barrel. |
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CHAOS GENERATOR |
| Have all 3 generators running at once in "The Sacrifice" finale. |
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SACRIFIZZLE |
| As a Special Infected, incap someone who is trying to sacrifice themselves. |
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STREAM CROSSER |
| Survive the Cold Stream campaign on any difficulty. |
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CONNECTING FIGHTS |
| Play a Versus game on Dead Air from start to finish. |
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Valve Gift Grab 2011 – L4D2 |
| Collect three gifts dropped by Special Infected in Versus Mode. |
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GOOD GUY NICK |
| Plays games with free weekend players and helps them survive a campaign. |
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GHOST OF CHRISTMAS PRESENT |
| Spread cheer by helping a free holiday player survive a campaign. |
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GETTING STARTED |
| Earn a bronze medal on any official Survival map. |
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ON OUR WAY |
| Earn a silver medal on any official survival map. |
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THIS IS WHERE THE FUN BEGINS |
| Earn a gold medal on any official survival map. |
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STILL STANDING |
| Survive The Last Stand campaign on any difficulty. |
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THE LAST FRONTIER |
| Survive The Last Stand campaign on Expert Realism. |
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GOLDEN FREEMAN |
| Find the golden crowbars hidden in the Left 4 Dead 1 survival maps. |
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ELEPHANT IN THE ROOM |
| Revive an incapacitated teammate while a Tank is nearby. |
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I SPIT ON YOUR GRAVE |
| As the Spitter, spit on a Survivor who is pinned by a Charger. |
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ACID BATH |
| As the Spitter, spit on a Survivor who is pinned by a Hunter. |
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SPITFIRE |
| Destroy 20 gascans as the Spitter. |
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FLIGHT DECK |
| Instantly kill a Survivor as the Charger. |
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FAT NINJA |
| As the Boomer, vomit on a Survivor without having direct line of sight with them. |
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THREE’S A CROWD |
| Rescue three Survivors from a single rescue closet. |
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LICKETY-SPLIT |
| With a sharp melee weapon, cut a Smoker's tongue before he ensnares you. |
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GET SKEETED ON |
| Kill a pouncing Hunter with a shotgun. |
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ROCKY HORROR PICTURE THROW |
| Destroy a Tank's rock in mid-air. |
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SHOTGUN WEDDING |
| Kill the Witch bride with a single shotgun blast on expert difficulty. |
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ONE HIT WONDER |
| As the Hunter, land a 25 damage pounce. |
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PURE SATISFACTION |
| Kill 20 Jockeys with the shovel or pitchfork. |
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THE BIG TEN |
| Survive for 10 minutes on any official map in Versus Survival. |
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Z-GENOCIDEST 2: EPISODE 2 |
| Kill 53,599 infected. You made sure the dead won't rise anymore! |
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POLE POSITION |
| Escape Liberty Mall's Atrium before the first Tank appears |
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HOUSEHOLD NAMES |
| Discover the hidden room in the Last Stand campaign |
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A LITTLE HACK AND SLASH |
| Earn a bronze medal on every official survival map |
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LIKE LAMBS TO THE SLAUGHTER |
| Earn a silver medal on every official survival map. |
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KILLING SPREE |
| Earn a gold medal on every official survival map. |
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SUPREME SURVIVALIST |
| Survive for 30 minutes on any official survival map. |
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NEW HAIRCUT |
| Kill a Witch using only a sharp melee weapon, without anyone getting incapacitated or killed. |
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THE MAIN ATTRACTION |
| On the concert finale, survive until the helicopter arrives without leaving the stage |
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THE LAST DASH |
| Complete The Last Stand campaign in 13 minutes or less, without any Survivors dying. |
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GNOME ALONE |
| If you are reading this achievement, Gabe Newell has successfully launched Gnome Chompski into space. |