I somewhat recently discovered the world of 1 sheet rpgs, totally self contained games that fit neatly onto one sheet of paper. I sort of went all in as it scratched a number of itches creatively. I've been a fan of HPL most of my life, so combining the two was a natural fit. I made one sort of generic mythos game (Mythos Mishaps), but then I made three story specific ones:

The Cats of UlthaRPG: You play as the cats on that fateful night, calling upon the magic of cats.
Escape from Innsmouth: You play out the fallout of the government raid on Innsmouth, playing as folks with varying degrees of deep one genetics.
The ColouRPG out of Space: You play as investigators looking into the happenings on the farm.

If you are interested they are free to download from my site (as are all my games). Just pop over to https://talesbybob.com/one-sheet-rpgs to get the pdfs. If you like them, I would love some feedback. Cheers!