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