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