solo rpg solo play game master table method listen narrative faq summary oracle cheat sheet random generators podcast combat ai voice solo creativity theme inspiration experiment story strategy free guide beginner demo review scene exploration rules list emulator paid module conflict solo gm dungeon crawl expansion video roleplay improvisation published hex-crawl gameplay supplement wisdom cheat free module shadow dark tweaks 2d6 dungeon choose your own adventure guide meta overview ian irvine toolbox text-to-speech adventure visualisation journaling cinematography budget exercise audio drama text-based tips problem solving main page gwydion solodark workbook