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