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.
Heal yourself with a medkit 100 times.
Find 120 collectibles.
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 5 quests with 3 co-op partners.
Play Dead Island at least 28 days after starting it for the first time.
Kill 250 zombies using blunt melee weapons.
Kill a Butcher using an axe
Reach level 50
Find 60 collectibles.
Kill 100 enemies with Fury attacks.
Kill 250 zombies with modified weapons.
Complete act 4.
Finish 75 quests cumulatively.
Complete act 3.
Kill 250 zombies using edged melee weapons.
Kill 25 zombies with your bare fists.
Kill 250 zombies using firearms.
Kill a Suicider with a grenade.
Kill an Infected with a grenade blast.
Sever 100 limbs.
Kill 50 human enemies.
Reach level 25.
Complete act 2.
Drive a total distance of 10 kilometers.
Kill 50 zombies using a vehicle.
Travel a distance of 20 kilometers on foot.
Complete 25 quests while playing with at least one co-op partner.
Save 5 people besieged by zombies.
Create weapons to rival the gods of fire or thunder.
Complete act 1.
Kill 5 Infected in a row with a single 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.
Create a customized weapon.
Breach a locked door with the first blow.
Reach level 10.
Customize 25 weapons
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.
Use a large medkit to heal an injury of 5% or less.
Complete act 1 with 4 different characters.
Kill a Ram using tackle skill.