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.
Viewed an Easter Egg.
Soria connected to the Heart.
Destroyed the Box of Infinite Complexity.
Viewed Earth from Soria.
Kaptar connected to the Heart.
Maray connected to the Heart.
Thanks to all of our backers!
Approached an active Mofang WMD.
Found Farley's pod in the Silo.
Hunrath connected to the Heart.
Checked in with CW after turning on the power.
Redirected the water in Hunrath.