the real challenge with this project has been making a lite version of a lot of the mechanics for Soul so the game can progress without a DM present and without getting too interrupted. I have managed to simplify enemies, build a character, and make simple powers that create interesting challenge and mechanics without distracting from the story, which is about grief. It goes through the various stages and offers the player a choice at the end: to keep going or give up. I think that the various simplifications to systems have helped to make it an engaging story with a simple and effective message.
This playtest was mostly about making changes to the story, and finding a way to present a meaningful message about grief and mental health without coming across as oppressive or overbearing. I found players resonated much more with this than a strictly 100% realistic depiction of mental illness.