I have an idea at the back of mind for a short campaign which tells two stories:
The family of a dying billionaire fight for control of his assets, but the key to unlocking his secrets may lie in the pages of a limited comic book series from 50 years ago.
Meanwhile, in the pages of that comic book, the world’s greatest heroes face an existential threat that could destroy them all.
#ttrpg
The twist in the campaign is that the players are split into two groups, with half playing in the contemporary setting and half in the comic book setting. What I need are suggestions for simple game systems to handle each of these settings; they don't need to run on the same base, they just both have to be simple and focused on their setting. Open to suggestions, but if your suggestion includes any variation on the phrase "You can hack [Game X]," then it's the wrong type of suggestion.
I mean this sounds like you're describing city of mists. Related to pbta but no playbooks.
Mythos/logos split. The Mythos traits are for the supernatural powers, the logos, the everyday stuff.
It's explicitly designed to handle that split.
@Homebrewandhacking @jamesmullen City of Mist sounds promising. If you want to use separate systems, Robin D. Laws' Drama System would work well for the billionaire story. For the superhero story, well, how existential is this threat? You could use #dread or #tencandles to represent reality unraveling, but those are both one-shot games. #masks is great, but it's a heavy PbtA game. So not sure.
That's why I recommended the playbook free version. The genre emulators are very good but you have to find the right tool for the job.
OTOH, there are so many PBTA games that maybe there's playbooks that are right. More research needed!
Those other two are great games, very atmospheric but you definitely die at the end.