Here is the full list of all 26 Dead Maze achievements.
Complete 10 Adventures or Expeditions
Reach maximum quality for each type of clothing gear
Complete 5 adventures or expeditions in maximum difficulty
Kill 5 infected only with the explosion of an unstable infected
Find a roommate
Reach level 100
Build 30 buildings
Kill 20 infected Peruvians
Discover a treasure among an infected horde
Witness an emergency meeting
Complete 30 daily missions
Find out what's threatening Lakeview
Reach level 5 Threat
Reach level 30
Deal with the Outrunner with Jared
Find Egon
Rescue another player 20 times
Blow up a cafeteria
Craft 30 items
Meet Jay
Trigger an elemental combo 30 times
Equip a protection kit
Reach level 10
Party with other players
Find a place to settle
Complete the tutorial