Freeform Games you'd like to see GM'd?
I would love to see a freeform game kinda like supernatural in terms of hunter/monster type game but with a more BloodBorne or Dark Souls esque atmosphere, ya know dark, heavy combat, horror, etc. Could be fun. Especially if combatting some of the creatures involves actually looking into the history of the creature and culture to find out how to deal with them, that could be really interesting, but a lot of work to set up a story for.
Character and weapon creation could be really interesting if there were bloodborne-esque weapons involved, custom weapons & abilities are always fun to work with, supposing they had means of balancing them.
Then again, this comes from a dude who LOVES the darker games and more truly terrifying creatures, horror movies spoiled me.