Games like Project: Gorgon - Extra Character Slots Pack

If you finished Project: Gorgon - Extra Character Slots Pack, the closest matches are Last Dream, Imaginary Future, Sonia no Daibouken: Mittsu no Hihou no Kakusareta Nazo!, Sonia and the Hypnotic City and Legends of Aria. All 10 share its indie genre and are ranked by how closely their themes and modes overlap.