Kill 10 zombies in a row with headshots.
Kill an Infected with a grenade blast.
Explore the entire island.
Kill 50 human enemies.
Find 120 collectibles.
Kill 5 Infected in a row with a single blow.
Kill 25 zombies with your bare fists.
Customize 25 weapons.
Use a hammer to kill a series of 15 zombies without taking damage.
Heal yourself with a medkit 100 times.
Kill 150 enemies using Analog Fighting controls.
Kill 250 zombies with modified weapons.
Kill 250 zombies using blunt melee weapons.
Reach level 25.
Find 60 collectibles.
Finish 75 quests cumulatively.
Kill 50 zombies using a vehicle.
Drive a total distance of 10 kilometers.
Sever 100 limbs.
Complete 5 quests with 3 co-op partners.
Play in a co-op team of 4 different playable characters.
Kill 250 zombies using edged melee weapons.
Travel a distance of 20 kilometers on foot.
Reach level 10.
Create weapons to rival the gods of fire or thunder.
Join another player's game.
Create a customized weapon.
Complete 25 quests while playing with at least one co-op partner.
Breach a locked door with the first blow.
Complete 5 quests in a single co-op game with the same partners.
Kill a zombie with 10 different melee weapons.
Loot 5 Exceptional Weapons.
Complete act I with 4 different characters.
Reach level 50.
Set 10 zombies on fire simultaneously.
Kill 100 enemies with Fury attacks.
Play with 10 different co-op partners for at least 15 minutes each.
Play any Arena in co-op.
Set 5 enemies on fire and then kill them with explosives.
Survive 5 waves using only your fists and legs.
Kill enemies of 6 different types during a single round.
Survive 5 waves in each of the 4 Arenas.
Survive 15 consecutive waves using the analog combat controls.
Survive 15 consecutive waves with each of the 4 characters.
Survive 10 consecutive waves using only custom weapons.
Survive 30 consecutive waves with at least one co-op player.
Survive wave 30.
Kill 250 zombies using firearms.
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