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