Trophies

Zed Smasher
Kill a Zombie

Nothin' Personal
Kill a Player

Starting Strong
Stay alive for 24 ingame hours on one character

That's Going to Happen a Lot
Die for the first time

Well...
Get bitten by a zombie

Concussed
Get knocked out

Welcome to Hell
Complete the tutorial

Bedridden
Use a bed to relieve your fatigue

Not Bad
Win a fight while outnumbered

Close Call
Win a fight with less than 5% health remaining

Almost Dry
Kill a player with the last bullet in a magazine

Medic
Tend to another player's wounds

Not So Loud!
Draw the attention of 5 or more zombies with a single sound

A Helping Hand
Kill a player within 30 seconds of them being attacked by a zombie

Not Today
Save a player from a zombie

Clean Sweep
Secure a building that has at least 50 infected in it.

Walk it Off- oh.. right..
Survive for 24 ingame hours with both legs amputated

Revenge from the Grave
Kill a player after dying

K.O.
Knock out a player with your bare hands

Survivor
Survive for one ingame year on one character

Nice Shot
Kill two players with one bullet