Here is the full list of all 57 Dead Island Definitive Edition achievements.
Survive 5 waves in each of the 4 Arenas.
Survive wave 30.
Explore the entire island.
Survive 5 waves using only your fists and legs.
Play in a co-op team of 4 different playable characters.
Reach level 50.
Set 5 enemies on fire and then kill them with explosives.
Set 10 zombies on fire simultaneously.
Complete 5 quests with 3 co-op partners.
Play any Arena in co-op.
Loot 5 Exceptional Weapons.
Join another player's game.
Kill 10 zombies in a row with headshots.
Use a hammer to kill a series of 15 zombies without taking damage.
Kill an Infected with a grenade blast.
Customize 25 weapons.
Kill 250 zombies using firearms.
Heal yourself with a medkit 100 times.
Complete act 1 with 4 different characters.
Kill a Suicider with a grenade.
Kill a Ram using tackle skill.
Kill 100 enemies with Fury attacks.
Kill 25 zombies with your bare fists.
Find 120 collectibles.
Kill 250 zombies using blunt melee weapons.
Kill 250 zombies with modified weapons.
Play Dead Island - Definitive Edition at least 28 days after starting it for the first time.
Complete act 4.
Complete act 3.
Use a large medkit to heal an injury of 5% or less.
Kill a Butcher using an axe.
Complete act 2.
Finish 75 quests cumulatively.
Complete 25 quests while playing with at least one co-op partner.
Find 60 collectibles.
Reach level 25.
Kill 5 Infected in a row with a single blow.
Save 5 people besieged by zombies.
Kill 50 human enemies.
Kill 250 zombies using edged melee weapons.
Travel a distance of 20 kilometers on foot.
Complete act 1.
Create weapons to rival the gods of fire or thunder.
Create a customized weapon.
Sever 100 limbs.
Drive a total distance of 10 kilometers.
Kill a zombie with 10 different melee weapons.
Kill 50 zombies using a vehicle.
Reach level 10.
Complete 5 quests in a single co-op game with the same partners.
Breach a locked door with the first blow.
Play with 10 different co-op partners for at least 15 minutes each.
During a single round kill an Infected, Suicider, Ram, Butcher, Floater, Walker.
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.