solo rpg solo play game master table method listen narrative summary faq oracle cheat sheet podcast random generators 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 wisdom supplement cheat free module shadow dark tweaks 2d6 dungeon choose your own adventure guide meta ian irvine overview toolbox text-to-speech adventure visualisation cinematography journaling exercise audio drama budget text-based tips problem solving main page gwydion solodark workbook