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