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