Here is the full list of all 57 Dead Island Definitive Edition achievements.
Play with 10 different co-op partners for at least 15 minutes each.
Survive 15 consecutive waves with each of the 4 characters.
Complete act 1 with 4 different characters.
Kill a Ram using tackle skill.
Survive 10 consecutive waves using only custom weapons.
Kill 10 zombies in a row with headshots.
Survive 5 waves in each of the 4 Arenas.
During a single round kill an Infected, Suicider, Ram, Butcher, Floater, Walker.
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.
Heal yourself with a medkit 100 times.
Kill 250 zombies using firearms.
Kill an Infected with a grenade blast.
Survive 15 consecutive waves using the analog combat controls.
Drive a total distance of 10 kilometers.
Reach level 50.
Kill 5 Infected in a row with a single blow.
Survive 5 waves using only your fists and legs.
Play any Arena in co-op.
Complete act 4.
Explore the entire island.
Complete act 3.
Loot 5 Exceptional Weapons.
Kill 250 zombies with modified weapons.
Kill 100 enemies with Fury attacks.
Kill a Suicider with a grenade.
Set 10 zombies on fire simultaneously.
Use a hammer to kill a series of 15 zombies without taking damage.
Kill 250 zombies using blunt melee weapons.
Kill a Butcher using an axe.
Find 120 collectibles.
Customize 25 weapons.
Complete act 2.
Kill 50 zombies using a vehicle.
Finish 75 quests cumulatively.
Use a large medkit to heal an injury of 5% or less.
Kill 50 human enemies.
Breach a locked door with the first blow.
Reach level 25.
Find 60 collectibles.
Kill 250 zombies using edged melee weapons.
Create weapons to rival the gods of fire or thunder.
Sever 100 limbs.
Complete act 1.
Travel a distance of 20 kilometers on foot.
Save 5 people besieged by zombies.
Complete 25 quests while playing with at least one co-op partner.
Create a customized weapon.
Reach level 10.
Kill a zombie with 10 different melee weapons.
Complete 5 quests in a single co-op game with the same partners.
Complete 5 quests with 3 co-op partners.
Kill 25 zombies with your bare fists.
Play in a co-op team of 4 different playable characters.
Join another player's game.
Play Dead Island - Definitive Edition at least 28 days after starting it for the first time.