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