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