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