I played through a game of this solo after a friend of mine did the same themself, using it as a tool to explore one of my characters'...well, character. Not sure if it was healing or cathartic per se but I did cry quite a bit over the course of the 20 (in game) days. Also, reached 0 on the absolute final day and wasn't sure what to do, so I left it up to a coin flip.

The setting is very intriguing and leaves a lot of room for creative interpretation, making for vastly different experiences of what's ultimately the same setup.

The free-form nature of it makes for a very lonely and yet compelling solo experience- haven't played it with anyone else yet so I'm unsure of how it is in collaboration, but as a solo ttrpg it definitely plays well.

I highly recommended you check it out if you're interested in psychological horror (or even if you enjoy character analysis in surreal apocalyptic settings).