solo rpg solo play game master table method listen narrative faq cheat sheet oracle summary random generators ai voice podcast combat inspiration solo theme strategy creativity free guide experiment beginner review scene exploration story rules list emulator demo paid module conflict solo gm published expansion video roleplay dungeon crawl improvisation solo-play cinematography pwyv audio drama text-based problem solving gameplay supplement play cheat gwydion shadow dark workbook tweaks drivethrurpg choose your own adventure criticism hexcrawl overview ian irvine crunch module imagination journaling hex-crawl budget exercise tips wisdom