- One Shot One Kill
Kill 250 zombies with the rage powerup in one game
- Time Traveler
Accumulate 90 seconds of Bullet Time in one single player game
- Perforator
Get the minigun and kill 50 zombies with it inside 9 seconds
- Butcher
Get 10 zombies sucked into one Meat Grinder
- Pushover
In one game, kick a zombie after that same zombie hurt you and repeat 20x
- Explosives Expert
In an On-line coop game, play as the Gunner and detonate 50 explosives (grenades, dynamite) in a single game
- Too Close For Comfort
Kill 25 Bombers with a Steam Hammer in one game while staying outside their explosion range
- Collector
Collect at least 20 perks in a single game
- Shock Expert
In an On-line coop game, play as the Scout and detonate 5 flash bangs in a single game
- Bullet Rain
Kill two Minigun zombie bosses within two minutes of each other
- Weapons Expert
Get Dexterity, Intensity, Accuracy, Heavy Ammo, Improved Loadout then get 1000 kills
- Headhunters
In an On-line Coop game, kill 20 bosses with your team in a single game
- Rhylos' 50
Collect a total of 50 achievements
- TeleFrag
Perform 20 remote grenade detonations
- Grenadier
Get Shrapnel and Midair Trigger then get 500 kills with the grenade launcher
- Killstreak One
Reach a stats KillStreak of 1000 zombies
- Machinist
In an On-line Coop game, upgrade a sentry gun to a weapon station
- Armory
Get Stronghold, Regeneration, Armor, Counterblow, Aftershock then survive 10 minutes
- Fire Chief
Burn 800 zombies with the Flame Thrower
- Demolitions Expert
Get Shrapnel and Remote Detonator then use 10 grenades in one game
- Flatliner
Bring yourself back to full health after nearly dying with Last Breath
- Execution
Kill at least 250 zombies using sentry guns
- Gunslinger
Complete any mission on 3 silver-star level using only the default Glock
- Walker
Complete the Walker mission on any silver or gold star level
- No Guns
Kill 500 zombies with a melee weapon
- Stronghold
Kill 100 zombies in Survival Mode without moving from start of game
- LockDown
Reach wave 2 in warehouse barricade without any zombie breaching the fence perimeter
- Death Cheat
Survive 5 minutes with health staying below 25%
- Big Game
In one game, kill two bosses without killing any other zombie in between
- Explosive Irony
Deal the killing blow to a Grenade Zombie with a grenade
- Pinpoint
In a single FreePlay game, survive for 5 minutes without your stats accuracy dropping below 50%
- Boss Hunter
Get Friendly Fire, Mano a Mano and Boss Power then kill 5 bosses in one game
- Free Man
Finish off a boss zombie with the crowbar
- Back2Back
In an On-line Coop game, stay within reaching distance of another player while not taking damage for 30 seconds
- Breather
Pick up health then survive 25 seconds in Free Play without damage or firing a single shot
- All 4 Deadly
Get Fire Team, Mirror Image and Wild Bunch, then get a ghost pickup
- ColdBlooded
Survive for three attack waves in Barricade Mode without moving
- Boogeyman
Survive for 15 waves on The Farm barricade map
- Held The Line
Reach Wave 8 in Bridge Barricade mode
- Close Encounter
In an On-line Coop game, kill a boss with a melee weapon
- Survivor
Survive for more than 2 minutes in survival mode
- Winner
Complete all the story missions
- Efficiency
Kill at least 10 zombies with one grenade
- Guardian
Complete the Point Defense mission
- Victor
Kill all zombie boss types
- Ladies First
Kill 5 female zombies in one streak without killing a single male
- Untouchable
Complete any mission without taking any zombie damage
- Flak Jacket
Get hurt by and survive 10 Zombie Bomber explosions in one game
- Magnet
Collect 10 zombie-attracting Rammers in one game
- 2x9MM
In one game kill 2 bosses using the Dual Glocks
- Arms Dealer
Get at least one kill with ten non-melee weapon in one game
- Fenced
In an On-line Coop game, hold out until wave 21 in Factory Barricade
- Blockade
Survive for 15 attack waves in Barricade Mode
- Stopping Power
Kill 150 running zombies in a single game
- Fortress
Survive for 10 attack waves in Barricade Mode
- Horde
Kill 50 zombies within a ten second period
- SpeedKiller
Kill any boss within 30 seconds of the boss appearing
- Bouncer
Survive 5 waves in Single Player Warehouse Barricade without the lower sentries firing a single shot
- Organizer
Host and play an On-line Coop game
- Resurrector
In an On-line Coop game, perform three revivals in a single game
- Gunbarrel
Kill the minigun zombie boss
- Sustained
In an On-line Coop game, revive another player and make sure they do not receive any damage for 15 seconds afterwards
- Back To Life
In an On-line Coop game, perform your first revival