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