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