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