Left 4 Dead 2

Earn a bronze medal on every official survival map

Earn a silver medal on every official survival map.

Earn a gold medal on every official survival map.

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

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

Destroy 20 gascans as the Spitter.

Survive The Last Stand campaign on Expert Realism.

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

Kill 20 Jockeys with the shovel or pitchfork.

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

Survive for 30 minutes on any official survival map.

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

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

Play 5 full games of Scavenge on The Port.

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

As the Hunter, land a 25 damage pounce.

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

Cause 25 gas can drops as a Special Infected.

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

Collect 100 gas cans in Scavenge.

Survive all campaigns on Expert.

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

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

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

Survive a campaign on Expert skill with Realism mode enabled.

Discover the hidden room in the Last Stand campaign

Make a Survivor drop a gas can during overtime.

Rescue three Survivors from a single rescue closet.

Play 6 Mutations.

Finish a campaign using only melee weapons.

Escape Liberty Mall's Atrium before the first Tank appears

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

Earn a gold medal on any official survival map.

Instantly kill a Survivor as the Charger.

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

Collect 15 gas cans in a single Scavenge round.

Cross the bridge finale in less than three minutes.

Defend yourself at the crashed airliner without taking damage.

Prove you are stronger than Moustachio.

Prove you are faster than Moustachio.

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

Earn a silver medal on any official survival map.

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

Win a game of Scavenge.

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

Revive 10 dead Survivors with the defibrillator.

Kill a Special Infected with an exploding barrel.

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

Rescue Gnome Chompski from the Carnival.

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

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

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

Collect three gifts dropped by Special Infected in Versus Mode.

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

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

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

Kill a Tank with melee weapons.

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

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

Honk the noses of 10 Clowns.

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

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

Play the new Midnight Riders song on a jukebox.

Earn a bronze medal on any official Survival map.

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

Kill a Tank only with damage from the original Survivors.

Survive The Last Stand campaign on any difficulty.

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

Open 5 foot lockers.

Kill 15 Infected with a single grenade launcher blast.

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

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

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

Have Bill sacrifice himself for the team.

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

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

Collect 10 items dropped by a Fallen Survivor.

Survive the Cold Stream campaign on any difficulty.

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

Destroy a Tank's rock in mid-air.

Kill 10 swampy Mudmen while they are in the water.

Kill a pouncing Hunter with a shotgun.

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

Use every melee weapon to kill Common Infected.

Complete "The Sacrifice".

Survive the Swamp Fever campaign.

Survive the Parish campaign.

Survive the Hard Rain campaign.

Ignite 50 Common Infected with incendiary ammo.

Decapitate 200 Infected with a melee weapon.

Kill 100 Common Infected with the chainsaw.

Survive the Dark Carnival campaign.

Survive The Passing Campaign.

Use a bile bomb on a Tank.

Revive an incapacitated teammate while a Tank is nearby.

Kill one of each Uncommon Infected.

Survive the Dead Center campaign.

Deploy an ammo upgrade and have your team use it.

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

Kill a Spitter before she is able to spit.

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