Hallucigenia (ハルキゲニア)

Hallucigenia is a fangame by Trendy-Sabamiso, it stars two young girls named Aya and Aine. Its current version is 0.008, which cannot be downloaded at the moment.

You start out playing as Aya in a mostly barren room and access the dream world through a black book on Aya's bed, Aya then takes a different form in the dream world where you can explore. You can unlock Aine later.

Effects:

Endings: One