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