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