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