Full list of all 65 Left 4 Dead 2 achievements worth 1,500 gamerscore. It takes around 20-25 hours to unlock all of the achievements in the base game on Xbox 360.
The base game contains 50 achievements worth 1,000 Gamerscore, and there are 2 DLC packs containing 15 achievements worth 500 Gamerscore.
- CHAIN OF COMMAND
Kill 100 Common Infected with the chainsaw.
- TANK BURGER
Kill a Tank with melee weapons.
- SHOCK JOCK
Revive 10 dead Survivors with the defibrillator.
- THE QUICK AND THE DEAD
Revive 10 incapacitated Survivors while under the speed-boosting effects of adrenaline.
- ARMORY OF ONE
Deploy an ammo upgrade and have your team use it.
- BURNING SENSATION
Ignite 50 Common Infected with incendiary ammo.
- DISMEMBERMENT PLAN
Kill 15 Infected with a single grenade launcher blast.
- SEPTIC TANK
Use a bile bomb on a Tank.
- CRASS MENAGERIE
Kill one of each Uncommon Infected.
- DEAD IN THE WATER
Kill 10 swampy Mudmen while they are in the water.
- ROBBED ZOMBIE
Collect 10 vials of Boomer vomit from infected CEDA agents you have killed.
Honk the noses of 10 Clowns.
- FRIED PIPER
Using a Molotov, burn a Clown leading at least 10 Common Infected.
- LEVEL A CHARGE
Kill a Charger with a melee weapon while they are charging.
- ACID REFLEX
Kill a Spitter before she is able to spit.
- A RIDE DENIED
Kill a Jockey within 2 seconds of it jumping on a Survivor.
- STACHE WHACKER
Prove you are faster than Moustachio.
- GONG SHOW
Prove you are stronger than Moustachio.
- GUARDIN' GNOME
Rescue Gnome Chompski from the Carnival.
- WING AND A PRAYER
Defend yourself at the crashed airliner without taking damage.
- SOB STORY
Navigate the sugar mill and reach the safe room without killing any Witches.
- VIOLENCE IN SILENCE
Navigate the impound lot and reach the cemetery safe room without tripping any alarms.
- BRIDGE OVER TREBLED SLAUGHTER
Cross the bridge finale in less than three minutes.
In a Versus round, leave the saferoom to defibrillate a dead teammate.
- STRENGTH IN NUMBERS
Form a team and beat an enemy team in 4v4 Versus or Scavenge.
- QUALIFIED RIDE
As the Jockey, ride a Survivor for more than 12 seconds.
- BACK IN THE SADDLE
As the Jockey, ride the Survivors twice in a single life.
- RODE HARD, PUT AWAY WET
As the Jockey, ride a Survivor and steer them into a Spitter's acid patch.
- GREAT EXPECTORATIONS
As the Spitter, hit every Survivor with a single acid patch.
- A SPITTLE HELP FROM MY FRIENDS
As the Spitter, spit on a Survivor being choked by a Smoker.
- SCATTERING RAM
As the Charger, bowl through the entire enemy team in a single charge.
- MEAT TENDERIZER
As the Charger, grab a Survivor and smash them into the ground for a solid 15 seconds.
- LONG DISTANCE CARRIER
As the Charger, grab a Survivor and carry them over 80 feet.
- BEAT THE RUSH
In a Survival round, get a medal only using melee weapons.
- HUNTING PARTY
Win a game of Scavenge.
- GAS GUZZLER
Collect 100 gas cans in Scavenge.
- CACHE AND CARRY
Collect 15 gas cans in a single Scavenge round.
- SCAVENGE HUNT
Stop the enemy team from collecting any gas cans during a Scavenge round.
- FUEL CRISIS
Make a Survivor drop a gas can during overtime.
- GAS SHORTAGE
Cause 25 gas can drops as a Special Infected.