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