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