Return to Terrestia Achievement – Geneforge 1 – Mutagen
How to Unlock Return to Terrestia Achievement
Complete the game while still getting a good ending. As far as I can tell, this just means don’t side with the Takers, or Goettsch. Using canisters, using the Geneforge, siding with Trajkov, leaving the Geneforge intact, even killing the innocent Shapers in the Eastern Docks doesn’t seem to give you a bad ending.
Guide by Commander A.