50,000 volts.
Shock 150 zombies.
Ankle deep in the dead.
Finish the Dead Pixels on Easy or higher.
Back from the dead, but in a good way.
Resurrect a player in coop.
Better than the guy that made the game.
Survive 10 waves in the Last Stand Survival mode.
Bloodbath.
Reach a kill combo of 40.
Buried in the dead.
Finish the Dead Pixels on Hardest.
Chunks of zombies everywhere!
Kill 10 zombies with a grenade.
Corpsicles.
Freeze 100 zombies.
If you've got the cash.
Spend over a million dollars in trader stores.
It don't belong to me.
Complete a game without raiding a building.
It's a beginning.
Get 1968 kills.
It's the humane thing to do.
Kill it with fire.
Set 150 zombies on fire.
Master of all skills.
Max level all skills.
Nice shot.
Kill 5 zombies with one shot.
Pack mule.
Walk across an entire street over encumbered.
Picked clean
Empty 300 buildings of items.
Saving ammo.
Kill 60 zombies with melee attacks.
Shoulder deep in the dead.
Finish the Dead Pixels On Hard or higher.
Supply and demand
Sell a wanted item to a trader
The Experiment.
See the medical experiment die in the orginal game mode.
The Fiend.
Kill the clawed fiend in the orginal game mode.
The Husk.
Kill the burning husk in the orginal game mode.
The Infected.
Kill the infected survivor in the orginal game mode.
The Queen.
Kill the Queen of spitters in the orginal game mode.
The Sergeant.
Kill the ex-army sergent in the orginal game mode.
Time attack
Complete a Last Stand time attack game.
True ending.
Finish the solution game mode on any difficulty.
Two against the world.
Finish a co-op game on any difficulty.
Waist deep in the dead.
Finish the Dead Pixels on Normal or higher.