Be the first one to die in a multiplayer game.

Heal 300 points of damage in a multiplayer game.

Heal 600 points of damage in a multiplayer game.

Heal 600 points of damage and kill 25 zombies with the rocket launcher in a multiplayer game.

Go 4 rounds without taking any damage and kill at least 40 zombies within that time.

Spend 200 scrap metal repairing teammates' turrets in a multiplayer game.

Have 5 turrets up simulatenously.

Kill 500 zombies with the berserker buff

Build 500 structures

Kill 3,000 enemies

Kill 6,500 enemies

Kill 20,000 enemies

Have the maximum number of defense items built simultaneously.

Survive a night without using your flashlight while still killing at least 10 enemies.

Take at least 250 points of damage in a single life.

Take at least 500 points of damage in a single life.

Kill 50 zombies using the Electro-shield upgrade in a single game.

Hit 3 enemies with a single railgun shot

Hit 5 enemies with a single railgun shot

Hit 10 enemies with a single railgun shot

Lure 10 zombies onto a single mine

Kill all enemies in the Sewer on normal.

Kill 7 enemies using a single air support powerup

Heal 300 points of damage using lifesteal in a single game

Kill a tunneler using a well-placed mine

Kill a teammate with the afterblast of a demolition zombie that you shot.

Kill Sackhead using a chainsaw

Kill at least 30 enemies after your teammates die in a single round.

Kill 6 enemies with the flamethrower within 8 seconds.

Die while reloading

Do more damage than all of your teammates combined in a 3+ player game that lasts at least 4 rounds.

Defend the objective 500 times

Kill 4 enemies in 3 seconds with the pistol

Last 6 rounds without building any turrets or fences

Purchase all of the available upgrades in a single game

Get killed by the last basic zombie of the round.

Stop Sackhead with a bear trap

Accumulate 500 explosion kills

Catch 500 enemies using the bear trap

Be within blood splatter range for 3000 dismembering kills

Kill Deadmass using the med gun

Complete the single player campaign.

Complete the single player campaign on normal without dying.

Complete the single player campaign on normal without taking damage.