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