Here is the full list of all 13 Subsurface Circular achievements. It takes around 2-3 hours to unlock all of the achievements on Windows.
Complete the first sequence.
Complete the second sequence.
Complete the third sequence.
Complete the fourth sequence.
Complete the fifth sequence.
Complete the sixth sequence.
Do not throw away your shot.
Help a Tek find a new job.
Offend your elder.
Create a new world.
Protect your world.
Listen to a story about jumping.
Learn a little about the making of Subsurface Circular.