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