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