Full list of all 27 Superliminal achievements. It takes around 8-10 hours to unlock all of the achievements in the base game on Windows.
The base game contains 21 achievements, and there is 1 DLC pack containing 6 achievements.
Empty all fire extinguishers
Pull all the fire alarms
Find the hidden trophy
Complete all constellations
Make the last move
Find all secret chess pieces
Find all blueprints
Fail at throwing away trash
Find the nook in Optical
Congratulations on doing something!
Beat the game in under 30 minutes
Beat the game in under an hour
Beat the game
Drink all sodas
Pull enough fire alarms
Clone an object way too many times
An apple for a head
Break a soda can
Pull one fire alarm
Place a soda can in a recycling bin
Put a soda can in the wrong place instead of recycling
Contribute an item to the Workshop
Import a 3D model into the game
Play someone else's dream
Upload a dream to the workshop
Finish all challenges in Challenge Mode
Finish the game with developer commentary enabled