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