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.
Set 10 zombies on fire simultaneously.
Kill 10 zombies in a row with headshots.
Explore the entire island.
Heal yourself with a medkit 100 times.
Complete act 1 with 4 different characters.
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.
Kill 100 enemies with Fury attacks.
Kill 150 enemies using Analog Fighting controls.
Kill a Ram using tackle skill.
Kill a Butcher using an axe
Loot 25 Exceptional Weapons.
Complete act 4.
Customize 25 weapons
Complete act 3.
Kill a Suicider with a grenade.
Complete act 2.
Kill an Infected with a grenade blast.
Kill 5 Infected in a row with a single blow.
Kill 250 zombies using firearms.
Find 120 collectibles.
Complete act 1.
Reach level 50
Use a large medkit to heal an injury of 5% or less.
Play Dead Island at least 28 days after starting it for the first time.
Kill 250 zombies with modified weapons.
Breach a locked door with the first blow.
Kill 250 zombies using edged melee weapons.
Finish 75 quests cumulatively.
Reach level 25.
Sever 100 limbs.
Find 60 collectibles.
Kill 50 human enemies.
Save 5 people besieged by zombies.
Kill 250 zombies using blunt melee weapons.
Create weapons to rival the gods of fire or thunder.
Create a customized weapon.
Travel a distance of 20 kilometers on foot.
Drive a total distance of 10 kilometers.
Kill 50 zombies using a vehicle.
Reach level 10.
Complete 25 quests while playing with at least one co-op partner.
Kill a zombie with 10 different melee weapons.
Kill 25 zombies with your bare fists.
Complete 5 quests in a single co-op game with the same partners.
Join another player's game.