The 'Scenariogram' is a series of tables, Keeper aids and sheets in the Japanese Call of Cthulhu modern-day sourcebook, Cthulhu 2020. Its main use is to create the bones of a scenario using random tables, with 3 main tables and 9 subtables. As I don't have the time to write a full review, let's try rolling up a scenario.
Text version here:
https://mjrrpg.com/scenariogram-random-scenario-call-of-cthulhu-cthulhu-2020/
Thank you to Cryochamber for use of their album, Cthulhu.
https://www.youtube.com/watch?v=ppiGTLqfaWc
https://cryochamber.bandcamp.com/album/cthulhu
