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