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