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