Here is the full list of all 15 Obduction achievements. It takes around 10-12 hours to unlock all of the achievements on Windows.
Left the nest.
Returned to Earth.
Destroyed the Bleeder in Hunrath.
Kaptar connected to the Heart.
Viewed an Easter Egg.
Destroyed the Box of Infinite Complexity.
Maray connected to the Heart.
Approached an active Mofang WMD.
Found Farley's pod in the Silo.
Viewed Earth from Soria.
Soria connected to the Heart.
Thanks to all of our backers!
Hunrath connected to the Heart.
Checked in with CW after turning on the power.
Redirected the water in Hunrath.