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.
Help a Tek find a new job.
Complete the third sequence.
Offend your elder.
Complete the second sequence.
Complete the first sequence.
Complete the fourth sequence.
Complete the fifth sequence.
Complete the sixth sequence.
Do not throw away your shot.
Create a new world.
Protect your world.
Listen to a story about jumping.
Learn a little about the making of Subsurface Circular.