Kill 1000 zombies
Kill 10000 zombies
Kill 1000 zombies with bodyshots
Kill 250 zombies with explosions
Burn 250 zombies to death
Kill 500 creatures
Kill 1000 zombies with headshots
Pacify a big guy
Beat 250 zombies to death
Die in a lava pond
Mute the narration
Finish chapter 1
Finish chapter 2
Finish chapter 3
Get a pistol
Get dual pistols
Get an assault rifle
Get dual assault rifles
Get a shotgun
Get dual shotguns
Get a dark pistol
Get dual dark pistols
Get a dark shotgun
Get dual dark shotguns
Get an SMG
Get dual SMGs
Get a sniper rifle
Explore the living quarters
Meet your nemesis
Clean the storage
Get to the nicest room
Do what you shouldn't
Complete the shooting range
Find the shortest route
Outrun the rising lava
Have a walk outside
Finish chapter 4
Die because of the boulder
Kill 100 zombies
Find the cultist room in chapter 1
Find the cultist room in chapter 2
Do not use healing or armor station in the Hangar
Witness the spectacle
Find the cultist room in chapter 3
Finish chapter 5
Finish chapter 6
Finish the game
Obtained the secret cultist weapon
Have a still living zombie fall into lava
Go on a doggy hunt with only pistols
Find the cultist room in chapter 4
Find all cultist rooms
Take no flashlight
Progress without disabling the turrets
Get all achievements