Survive 15 consecutive waves with each of the 4 characters.
Survive 30 consecutive waves with at least one co-op player.
Survive wave 30.
Set 5 enemies on fire and then kill them with explosives.
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 10 consecutive waves using only custom weapons.
Play any Arena in co-op.
Survive 5 waves using only your fists and legs.
Complete act I with 4 different characters.
Explore the entire island.
Kill a Ram using tackle skill.
Play in a co-op team of 4 different playable characters.
Kill a Butcher using an axe.
Kill an Infected with a grenade blast.
Use a large medkit to heal an injury of 5% or less.
Kill 100 enemies with Fury attacks.
Set 10 zombies on fire simultaneously.
Kill 10 zombies in a row with headshots.
Kill 250 zombies using firearms.
Kill 150 enemies using Analog Fighting controls.
Heal yourself with a medkit 100 times.
Play with 10 different co-op partners for at least 15 minutes each.
Kill 5 Infected in a row with a single blow.
Complete 5 quests with 3 co-op partners.
Kill 25 zombies with your bare fists.
Use a hammer to kill a series of 15 zombies without taking damage.
Join another player's game.
Complete act IV.
Find 120 collectibles.
Complete 25 quests while playing with at least one co-op partner.
Complete act III.
Complete 5 quests in a single co-op game with the same partners.
Complete act II.
Finish 75 quests cumulatively.
Customize 25 weapons.
Kill a Suicider with a grenade.
Reach level 25.
Find 60 collectibles.
Kill 50 human enemies.
Create weapons to rival the gods of fire or thunder.
Complete act I.
Kill 250 zombies using blunt melee weapons.
Kill 250 zombies with modified weapons.
Kill 250 zombies using edged melee weapons.
Sever 100 limbs.
Save 5 people besieged by zombies.
Create a customized weapon.
Drive a total distance of 10 kilometers.
Travel a distance of 20 kilometers on foot.
Kill 50 zombies using a vehicle.
Reach level 10.
Kill a zombie with 10 different melee weapons.
Breach a locked door with the first blow.
Loot 5 Exceptional Weapons.
Play Dead Island at least 28 days after starting it for the first time.
Reach level 50.
