I want to make a House Of Leaves/MyHouse.WAD inspired solo campaign. This is my first time ever homebrewing a solo adventure. This game is supposed to be hard and brutal. It is supposed to be infuriating. It's supposed to be a representation of depression and random. I have a concept of the plot that being a sort of creature feature game where the creature is the thing keeping you in this seemingly endless hell. The PC should have lost everything in their life. The game ends with a paradise where everything the player has been fighting for the entire time and finally finding peace at the end.

I need to know what I need to do to make my first ever homebrew solo adventure, how to make tables, random encounters, how to make the story move along and pretty much tools I can use to make this thing a reality. Might be a hard one to make my first homebrew from but it's something I want to do at some point.