Sam immediately flicked the switch to set the lodge ablaze

Ashley or Chris opened the trap door and let the monster in

Sam or Ashley attacked the psycho with a weapon

Score a x5 or higher multikill.

Score a x10 or higher killing streak.

All trophies have been awarded.

Perform 500 Melee Kills

Destroy 3 enemy rooms with one shot.

Kill 10 000 Zombies

Complete Mission 10 (Any Difficulty Level)

Complete Mission 8 (Any Difficulty Level)

Blow Up 1 000 Zombies