Left 4 Dead 2

KILLING SPREE

Earn a gold medal on every official survival map.

LIKE LAMBS TO THE SLAUGHTER

Earn a silver medal on every official survival map.

A LITTLE HACK AND SLASH

Earn a bronze medal on every official survival map

THE BIG TEN

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

GOLDEN FREEMAN

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

THE LAST FRONTIER

Survive The Last Stand campaign on Expert Realism.

SPITFIRE

Destroy 20 gascans as the Spitter.

THE LAST DASH

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

PURE SATISFACTION

Kill 20 Jockeys with the shovel or pitchfork.

SUPREME SURVIVALIST

Survive for 30 minutes on any official survival map.

SHOTGUN WEDDING

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

ONE HIT WONDER

As the Hunter, land a 25 damage pounce.

PORT OF SCAVENGE

Play 5 full games of Scavenge on The Port.

WEDDING CRASHER

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

STRENGTH IN NUMBERS

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

SACRIFIZZLE

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

HEARTWARMER

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

GAS SHORTAGE

Cause 25 gas can drops as a Special Infected.

BEAT THE RUSH

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

GAS GUZZLER

Collect 100 gas cans in Scavenge.

THE MAIN ATTRACTION

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

Z-GENOCIDEST 2: EPISODE 2

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

STILL SOMETHING TO PROVE

Survive all campaigns on Expert.

GOOD GUY NICK

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

THE REAL DEAL

Survive a campaign on Expert skill with Realism mode enabled.

HOUSEHOLD NAMES

Discover the hidden room in the Last Stand campaign

FUEL CRISIS

Make a Survivor drop a gas can during overtime.

THREE’S A CROWD

Rescue three Survivors from a single rescue closet.

MUTANT OVERLORD

Play 6 Mutations.

POLE POSITION

Escape Liberty Mall's Atrium before the first Tank appears

CONFEDERACY OF CRUNCHES

Finish a campaign using only melee weapons.

THIS IS WHERE THE FUN BEGINS

Earn a gold medal on any official survival map.

FLIGHT DECK

Instantly kill a Survivor as the Charger.

CONNECTING FIGHTS

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

THE QUICK AND THE DEAD

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

CACHE AND CARRY

Collect 15 gas cans in a single Scavenge round.

WING AND A PRAYER

Defend yourself at the crashed airliner without taking damage.

BRIDGE OVER TREBLED SLAUGHTER

Cross the bridge finale in less than three minutes.

GONG SHOW

Prove you are stronger than Moustachio.

ON OUR WAY

Earn a silver medal on any official survival map.

STACHE WHACKER

Prove you are faster than Moustachio.

I SPIT ON YOUR GRAVE

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

SCAVENGE HUNT

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

NEW HAIRCUT

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

SHOCK JOCK

Revive 10 dead Survivors with the defibrillator.

HUNTING PARTY

Win a game of Scavenge.

BARREL ROLLED

Kill a Special Infected with an exploding barrel.

CHAOS GENERATOR

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

GUARDIN' GNOME

Rescue Gnome Chompski from the Carnival.

ACID BATH

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

TIL IT GOES CLICK

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

SOB STORY

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

Valve Gift Grab 2011 – L4D2

Collect three gifts dropped by Special Infected in Versus Mode.

FAT NINJA

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

SCATTERING RAM

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

LEVEL A CHARGE

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

TANK BURGER

Kill a Tank with melee weapons.

VIOLENCE IN SILENCE

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

CL0WND

Honk the noses of 10 Clowns.

LONG DISTANCE CARRIER

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

A SPITTLE HELP FROM MY FRIENDS

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

GHOST OF CHRISTMAS PRESENT

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

GETTING STARTED

Earn a bronze medal on any official Survival map.

KILLING THEM SWIFTLY TO THIS SONG

Play the new Midnight Riders song on a jukebox.

LICKETY-SPLIT

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

KITE LIKE A MAN

Kill a Tank only with damage from the original Survivors.

STILL STANDING

Survive The Last Stand campaign on any difficulty.

FORE!

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

CACHE GRAB

Open 5 foot lockers.

DISMEMBERMENT PLAN

Kill 15 Infected with a single grenade launcher blast.

RODE HARD, PUT AWAY WET

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

MEAT TENDERIZER

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

KILL BILL

Have Bill sacrifice himself for the team.

BACK IN THE SADDLE

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

ROBBED ZOMBIE

Collect 10 vials of Boomer vomit from infected CEDA agents you have killed.

GRAVE ROBBER

Collect 10 items dropped by a Fallen Survivor.

QUALIFIED RIDE

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

STREAM CROSSER

Survive the Cold Stream campaign on any difficulty.

FRIED PIPER

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

ROCKY HORROR PICTURE THROW

Destroy a Tank's rock in mid-air.

GET SKEETED ON

Kill a pouncing Hunter with a shotgun.

DEAD IN THE WATER

Kill 10 swampy Mudmen while they are in the water.

CLUB DEAD

Use every melee weapon to kill Common Infected.

GREAT EXPECTORATIONS

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

SUPREME SACRIFICE

Complete "The Sacrifice".

RAGIN' CAJUN

Survive the Swamp Fever campaign.

BRIDGE BURNER

Survive the Parish campaign.

WEATHERMAN

Survive the Hard Rain campaign.

BURNING SENSATION

Ignite 50 Common Infected with incendiary ammo.

HEAD HONCHO

Decapitate 200 Infected with a melee weapon.

CHAIN OF COMMAND

Kill 100 Common Infected with the chainsaw.

MIDNIGHT RIDER

Survive the Dark Carnival campaign.

TORCH BEARER

Survive The Passing Campaign.

SEPTIC TANK

Use a bile bomb on a Tank.

ELEPHANT IN THE ROOM

Revive an incapacitated teammate while a Tank is nearby.

CRASS MENAGERIE

Kill one of each Uncommon Infected.

PRICE CHOPPER

Survive the Dead Center campaign.

ARMORY OF ONE

Deploy an ammo upgrade and have your team use it.

A RIDE DENIED

Kill a Jockey within 2 seconds of it jumping on a Survivor.

ACID REFLEX

Kill a Spitter before she is able to spit.

GNOME ALONE

If you are reading this achievement, Gabe Newell has successfully launched Gnome Chompski into space.