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