Here is the full list of all 27 Egression achievements.
Let an AI win 3 times in a row
Complete the Game Room
Clean up the lobby
Try out every color
Learn how to escape
Attempt to access a room improperly
Sink all the balls
Stick your finger where it doesn't belong
Disturb the local wildlife
Defend your scientific mission from danger
Prepare to dive
Complete the Deep Sea Lab
Help reset an intro area puzzle
Win a staring contest
Juggle a balloon
Hide somewhere you can't be found
Break all the glass
Strobe a light
Collect all the rocks
Try to extinguish a fire
Put all the tools back in their proper place
Win a different claw game prize
Gain access to the employee break room
Gain access to the Fire Alarm Control Panel
Get the elevator humming again
Find the credits
Complete the Lobby Runaround