Here is the full list of all 48 Dead Island achievements. It takes around 40-50 hours to unlock all of the achievements on Windows.
Play Dead Island at least 28 days after starting it for the first time.
Reach level 50
Customize 25 weapons
Loot 25 Exceptional Weapons.
Complete act 4.
Explore the entire island.
Complete act 3.
Use a large medkit to heal an injury of 5% or less.
Kill 250 zombies using firearms.
Kill a Butcher using an axe
Complete act 2.
Complete act 1 with 4 different characters.
Kill 100 enemies with Fury attacks.
Kill an Infected with a grenade blast.
Kill a Suicider with a grenade.
Kill 50 human enemies.
Heal yourself with a medkit 100 times.
Find 120 collectibles.
Set 10 zombies on fire simultaneously.
Kill 10 zombies in a row with headshots.
Kill 250 zombies with modified weapons.
Reach level 25.
Sever 100 limbs.
Kill 250 zombies using edged melee weapons.
Kill a Ram using tackle skill.
Finish 75 quests cumulatively.
Complete act 1.
Kill 250 zombies using blunt melee weapons.
Complete 25 quests while playing with at least one co-op partner.
Find 60 collectibles.
Create weapons to rival the gods of fire or thunder.
Create a customized weapon.
Use a hammer to kill a series of 15 zombies without taking damage.
Play with 10 different co-op partners for at least 15 minutes each.
Kill 5 Infected in a row with a single blow.
Drive a total distance of 10 kilometers.
Kill 50 zombies using a vehicle.
Save 5 people besieged by zombies.
Kill 150 enemies using Analog Fighting controls.
Complete 5 quests in a single co-op game with the same partners.
Travel a distance of 20 kilometers on foot.
Reach level 10.
Breach a locked door with the first blow.
Kill a zombie with 10 different melee weapons.
Complete 5 quests with 3 co-op partners.
Kill 25 zombies with your bare fists.
Play in a co-op team of 4 different playable characters.
Join another player's game.