CL0WND

Honk the noses of 10 Clowns.

Rare · 9.8% of players

FRIED PIPER

Using a Molotov, burn a Clown leading at least 10 Common Infected.

Uncommon · 15.7% of players

LEVEL A CHARGE

Kill a Charger with a melee weapon while they are charging.

Rare · 8.2% of players

CONFEDERACY OF CRUNCHES

Finish a campaign using only melee weapons.

Very Rare · 3.5% of players

HEAD HONCHO

Decapitate 200 Infected with a melee weapon.

Uncommon · 23.8% of players

HEARTWARMER

In a Versus round, leave the saferoom to defibrillate a dead teammate.

Very Rare · 1.6% of players

STILL SOMETHING TO PROVE

Survive all campaigns on Expert.

Very Rare · 2.2% of players

THE REAL DEAL

Survive a campaign on Expert skill with Realism mode enabled.

Very Rare · 2.5% of players

STRENGTH IN NUMBERS

Form a team and beat an enemy team in 4v4 Versus or Scavenge.

Very Rare · 1.5% of players

DISMEMBERMENT PLAN

Kill 15 Infected with a single grenade launcher blast.

Rare · 12.3% of players

SHOCK JOCK

Revive 10 dead Survivors with the defibrillator.

Rare · 5.5% of players

THE QUICK AND THE DEAD

Revive 10 incapacitated Survivors while under the speed-boosting effects of adrenaline.

Very Rare · 4% of players

CHAIN OF COMMAND

Kill 100 Common Infected with the chainsaw.

Uncommon · 25.7% of players

CLUB DEAD

Use every melee weapon to kill Common Infected.

Uncommon · 18.4% of players

TANK BURGER

Kill a Tank with melee weapons.

Rare · 8.3% of players

BRIDGE OVER TREBLED SLAUGHTER

Cross the bridge finale in less than three minutes.

Very Rare · 4.4% of players

PRICE CHOPPER

Survive the Dead Center campaign.

Uncommon · 41.1% of players

MIDNIGHT RIDER

Survive the Dark Carnival campaign.

Uncommon · 27.3% of players

RAGIN' CAJUN

Survive the Swamp Fever campaign.

Uncommon · 20.5% of players

WEATHERMAN

Survive the Hard Rain campaign.

Uncommon · 22.6% of players

BRIDGE BURNER

Survive the Parish campaign.

Uncommon · 20.6% of players

VIOLENCE IN SILENCE

Navigate the impound lot and reach the cemetery safe room without tripping any alarms.

Rare · 9.1% of players

GUARDIN' GNOME

Rescue Gnome Chompski from the Carnival.

Rare · 6.3% of players

SOB STORY

Navigate the sugar mill and reach the safe room without killing any Witches.

Rare · 6.4% of players

WING AND A PRAYER

Defend yourself at the crashed airliner without taking damage.

Very Rare · 4.4% of players

QUALIFIED RIDE

As the Jockey, ride a Survivor for more than 12 seconds.

Uncommon · 15% of players

BACK IN THE SADDLE

As the Jockey, ride the Survivors twice in a single life.

Rare · 14.2% of players

RODE HARD, PUT AWAY WET

As the Jockey, ride a Survivor and steer them into a Spitter's acid patch.

Rare · 12.3% of players

GREAT EXPECTORATIONS

As the Spitter, hit every Survivor with a single acid patch.

Uncommon · 18.2% of players

A SPITTLE HELP FROM MY FRIENDS

As the Spitter, spit on a Survivor being choked by a Smoker.

Rare · 10% of players

SCATTERING RAM

As the Charger, bowl through the entire enemy team in a single charge.

Rare · 7.6% of players

MEAT TENDERIZER

As the Charger, grab a Survivor and smash them into the ground for a solid 15 seconds.

Rare · 12.7% of players

LONG DISTANCE CARRIER

As the Charger, grab a Survivor and carry them over 80 feet.

Rare · 9.7% of players

BEAT THE RUSH

In a Survival round, get a medal only using melee weapons.

Very Rare · 1.9% of players

HUNTING PARTY

Win a game of Scavenge.

Rare · 5.4% of players

GAS GUZZLER

Collect 100 gas cans in Scavenge.

Very Rare · 2% of players

CACHE AND CARRY

Collect 15 gas cans in a single Scavenge round.

Very Rare · 4.2% of players

SCAVENGE HUNT

Stop the enemy team from collecting any gas cans during a Scavenge round.

Rare · 5.1% of players

GONG SHOW

Prove you are stronger than Moustachio.

Very Rare · 4.6% of players

FUEL CRISIS

Make a Survivor drop a gas can during overtime.

Very Rare · 3% of players

GAS SHORTAGE

Cause 25 gas can drops as a Special Infected.

Very Rare · 1.8% of players

STACHE WHACKER

Prove you are faster than Moustachio.

Rare · 5% of players

WEDDING CRASHER

As the Charger, grab a Survivor and crash them through 8 chairs at the wedding.

Very Rare · 1.5% of players

TIL IT GOES CLICK

Using the M60, kill 25 infected without letting go of the trigger.

Rare · 6.5% of players

GRAVE ROBBER

Collect 10 items dropped by a Fallen Survivor.

Uncommon · 15.2% of players

MUTANT OVERLORD

Play 6 Mutations.

Very Rare · 3.3% of players

FORE!

Knock off the heads of 18 infected with the golf club.

Rare · 12.1% of players

KILLING THEM SWIFTLY TO THIS SONG

Play the new Midnight Riders song on a jukebox.

Rare · 10.8% of players

CACHE GRAB

Open 5 foot lockers.

Rare · 12.2% of players

PORT OF SCAVENGE

Play 5 full games of Scavenge on The Port.

Very Rare · 1.5% of players

SUPREME SACRIFICE

Complete "The Sacrifice".

Uncommon · 20.4% of players

BARREL ROLLED

Kill a Special Infected with an exploding barrel.

Rare · 6% of players

CHAOS GENERATOR

Have all 3 generators running at once in "The Sacrifice" finale.

Rare · 6% of players

SACRIFIZZLE

As a Special Infected, incap someone who is trying to sacrifice themselves.

Very Rare · 1.5% of players

STREAM CROSSER

Survive the Cold Stream campaign on any difficulty.

Uncommon · 15.6% of players

CONNECTING FIGHTS

Play a Versus game on Dead Air from start to finish.

Very Rare · 3.7% of players

Valve Gift Grab 2011 – L4D2

Collect three gifts dropped by Special Infected in Versus Mode.

Rare · 6.9% of players

GOOD GUY NICK

Plays games with free weekend players and helps them survive a campaign.

Very Rare · 2.2% of players

GHOST OF CHRISTMAS PRESENT

Spread cheer by helping a free holiday player survive a campaign.

Rare · 10.3% of players

GETTING STARTED

Earn a bronze medal on any official Survival map.

Rare · 10.8% of players

ON OUR WAY

Earn a silver medal on any official survival map.

Rare · 5.1% of players

THIS IS WHERE THE FUN BEGINS

Earn a gold medal on any official survival map.

Very Rare · 3.7% of players

STILL STANDING

Survive The Last Stand campaign on any difficulty.

Rare · 11.9% of players

THE LAST FRONTIER

Survive The Last Stand campaign on Expert Realism.

Very Rare · 1% of players

GOLDEN FREEMAN

Find the golden crowbars hidden in the Left 4 Dead 1 survival maps.

Ultra Rare · 0.9% of players

ELEPHANT IN THE ROOM

Revive an incapacitated teammate while a Tank is nearby.

Uncommon · 33.5% of players

I SPIT ON YOUR GRAVE

As the Spitter, spit on a Survivor who is pinned by a Charger.

Rare · 5.1% of players

ACID BATH

As the Spitter, spit on a Survivor who is pinned by a Hunter.

Rare · 6.5% of players

SPITFIRE

Destroy 20 gascans as the Spitter.

Ultra Rare · 0.9% of players

FLIGHT DECK

Instantly kill a Survivor as the Charger.

Very Rare · 3.8% of players

FAT NINJA

As the Boomer, vomit on a Survivor without having direct line of sight with them.

Rare · 7.5% of players

THREE’S A CROWD

Rescue three Survivors from a single rescue closet.

Very Rare · 3.2% of players

LICKETY-SPLIT

With a sharp melee weapon, cut a Smoker's tongue before he ensnares you.

Rare · 11.2% of players

GET SKEETED ON

Kill a pouncing Hunter with a shotgun.

Uncommon · 17% of players

ROCKY HORROR PICTURE THROW

Destroy a Tank's rock in mid-air.

Uncommon · 16.3% of players

SHOTGUN WEDDING

Kill the Witch bride with a single shotgun blast on expert difficulty.

Very Rare · 1.2% of players

ONE HIT WONDER

As the Hunter, land a 25 damage pounce.

Very Rare · 1.5% of players

PURE SATISFACTION

Kill 20 Jockeys with the shovel or pitchfork.

Very Rare · 1.1% of players

THE BIG TEN

Survive for 10 minutes on any official map in Versus Survival.

Ultra Rare · 0.8% of players

Z-GENOCIDEST 2: EPISODE 2

Kill 53,599 infected. You made sure the dead won't rise anymore!

Very Rare · 2.2% of players

POLE POSITION

Escape Liberty Mall's Atrium before the first Tank appears

Very Rare · 3.6% of players

HOUSEHOLD NAMES

Discover the hidden room in the Last Stand campaign

Very Rare · 2.9% of players

A LITTLE HACK AND SLASH

Earn a bronze medal on every official survival map

Ultra Rare · 0.7% of players

LIKE LAMBS TO THE SLAUGHTER

Earn a silver medal on every official survival map.

Ultra Rare · 0.7% of players

KILLING SPREE

Earn a gold medal on every official survival map.

Ultra Rare · 0.7% of players

SUPREME SURVIVALIST

Survive for 30 minutes on any official survival map.

Very Rare · 1.2% of players

NEW HAIRCUT

Kill a Witch using only a sharp melee weapon, without anyone getting incapacitated or killed.

Rare · 5.4% of players

THE MAIN ATTRACTION

On the concert finale, survive until the helicopter arrives without leaving the stage

Very Rare · 2.2% of players

THE LAST DASH

Complete The Last Stand campaign in 13 minutes or less, without any Survivors dying.

Very Rare · 1% of players