Survive 15 consecutive waves with each of the 4 characters.
Set 5 enemies on fire and then kill them with explosives.
Survive 5 waves in each of the 4 Arenas.
Kill enemies of 6 different types during a single round.
Survive 10 consecutive waves using only custom weapons.
Survive wave 30.
Survive 30 consecutive waves with at least one co-op player.
Survive 15 consecutive waves using the analog combat controls.
Survive 5 waves using only your fists and legs.
Play any Arena in co-op.
Play Dead Island at least 28 days after starting it for the first time.
Complete act I with 4 different characters.
Play with 10 different co-op partners for at least 15 minutes each.
Kill a Ram using tackle skill.
Reach level 50.
Explore the entire island.
Complete act IV.
Complete act III.
Kill a Butcher using an axe.
Find 120 collectibles.
Kill 250 zombies using firearms.
Complete act II.
Kill 100 enemies with Fury attacks.
Loot 5 Exceptional Weapons.
Reach level 25.
Finish 75 quests cumulatively.
Kill 50 human enemies.
Heal yourself with a medkit 100 times.
Kill an Infected with a grenade blast.
Customize 25 weapons.
Kill 10 zombies in a row with headshots.
Find 60 collectibles.
Kill a Suicider with a grenade.
Use a large medkit to heal an injury of 5% or less.
Complete act I.
Kill 250 zombies using edged melee weapons.
Complete 25 quests while playing with at least one co-op partner.
Complete 5 quests with 3 co-op partners.
Set 10 zombies on fire simultaneously.
Complete 5 quests in a single co-op game with the same partners.
Sever 100 limbs.
Play in a co-op team of 4 different playable characters.
Join another player's game.
Drive a total distance of 10 kilometers.
Save 5 people besieged by zombies.
Create weapons to rival the gods of fire or thunder.
Kill 250 zombies with modified weapons.
Kill 150 enemies using Analog Fighting controls.
Kill 50 zombies using a vehicle.
Reach level 10.
Kill 5 Infected in a row with a single blow.
Kill 250 zombies using blunt melee weapons.
Breach a locked door with the first blow.
Kill 25 zombies with your bare fists.
Travel a distance of 20 kilometers on foot.
Use a hammer to kill a series of 15 zombies without taking damage.
Kill a zombie with 10 different melee weapons.
Create a customized weapon.
