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