The Cosmic Forge is an artifact of great power. I used it to replace all the Amazons and Sirens and suchlike with a horde of Modesty Ninjas, for your enjoyment and edification.
Note: I have since been advised that this mod is incomplete, and that I missed some content from the second half of the game that I never reached. Maybe, someday, I will break out the graph paper again and update this space.
Modesty Go!