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.
Complete act 4.
Kill 250 zombies using firearms.
Kill a Ram using tackle skill.
Complete act 3.
Finish 75 quests cumulatively.
Loot 25 Exceptional Weapons.
Kill 250 zombies with modified weapons.
Customize 25 weapons
Kill a Butcher using an axe
Kill 250 zombies using edged melee weapons.
Kill an Infected with a grenade blast.
Find 60 collectibles.
Use a large medkit to heal an injury of 5% or less.
Complete act 2.
Sever 100 limbs.
Kill 50 human enemies.
Reach level 25.
Kill 10 zombies in a row with headshots.
Kill a Suicider with a grenade.
Create weapons to rival the gods of fire or thunder.
Create a customized weapon.
Complete act 1.
Kill 5 Infected in a row with a single blow.
Kill 250 zombies using blunt melee weapons.
Travel a distance of 20 kilometers on foot.
Breach a locked door with the first blow.
Use a hammer to kill a series of 15 zombies without taking damage.
Drive a total distance of 10 kilometers.
Kill 25 zombies with your bare fists.
Kill 50 zombies using a vehicle.
Reach level 10.
Kill a zombie with 10 different melee weapons.
Set 10 zombies on fire simultaneously.
Explore the entire island.
Heal yourself with a medkit 100 times.
Complete act 1 with 4 different characters.
Reach level 50
Find 120 collectibles.
Save 5 people besieged by zombies.
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 100 enemies with Fury attacks.
Kill 150 enemies using Analog Fighting controls.