Full list of all 72 The Backrooms: Survival achievements.
The base game contains 59 achievements, and there are 4 DLC packs containing 13 achievements.
Headshot an entity
Use a teleportation gem
Bestow the haste effect on yourself
Obtain a modern firearm
Obtain a weapon with the heavy affinity
Obtain a weapon with the critical affinity
Obtain a weapon with the rare affinity
Obtain a weapon with the special affinity
Obtain a weapon with the legendary affinity
Break an ore deposit