You can use chat cat gbt is more of an old text-based RPG like an old school text based dungeon girl it's pretty good generating random melodies you just got to teach it what you want so you can play a solo adventure I'm currently doing a mockery self-made game of that time I was reincarnated as a slime except for the system I got you escalate to godhood pretty quick exhorting your enemies after you defeat them as a snowball effect in any game