Here is the full list of all 57 Dead Island Definitive Edition achievements.
Complete act 1 with 4 different characters.
Complete act 4.
Explore the entire island.
Complete act 3.
During a single round kill an Infected, Suicider, Ram, Butcher, Floater, Walker.
Survive 5 waves in each of the 4 Arenas.
Find 120 collectibles.
Kill a Butcher using an axe.
Complete act 2.
Finish 75 quests cumulatively.
Reach level 50.
Loot 5 Exceptional Weapons.
Drive a total distance of 10 kilometers.
Set 10 zombies on fire simultaneously.
Kill a Ram using tackle skill.
Complete 25 quests while playing with at least one co-op partner.
Kill a Suicider with a grenade.
Kill an Infected with a grenade blast.
Customize 25 weapons.
Kill 50 human enemies.
Reach level 25.
Kill 250 zombies using firearms.
Kill 100 enemies with Fury attacks.
Find 60 collectibles.
Complete act 1.
Survive 5 waves using only your fists and legs.
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.
Play with 10 different co-op partners for at least 15 minutes each.
Play Dead Island - Definitive Edition at least 28 days after starting it for the first time.
Survive 30 consecutive waves with at least one co-op player.
Survive wave 30.
Play any Arena in co-op.
Set 5 enemies on fire and then kill them with explosives.
Kill 250 zombies with modified weapons.
Create weapons to rival the gods of fire or thunder.
Kill 250 zombies using blunt melee weapons.
Save 5 people besieged by zombies.
Kill 50 zombies using a vehicle.
Heal yourself with a medkit 100 times.
Use a large medkit to heal an injury of 5% or less.
Kill 5 Infected in a row with a single blow.
Complete 5 quests in a single co-op game with the same partners.
Complete 5 quests with 3 co-op partners.
Play in a co-op team of 4 different playable characters.
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.
Sever 100 limbs.
Travel a distance of 20 kilometers on foot.
Kill 250 zombies using edged melee weapons.
Create a customized weapon.
Reach level 10.
Breach a locked door with the first blow.
Kill a zombie with 10 different melee weapons.
Kill 25 zombies with your bare fists.