This is so unique. I'm in love with the premise. I'm a big fan of creepy circuses. I didn't know I was a big fan of sad slime, but I guess I've learned that about myself now. I think adding a clown content warning was a good idea because even though they're actually mimes, they're definitely up to some clown shenanigans.
I have no idea what this system is, but it looks like it's very playable. I'm going to totally rely on the other comment below saying it's well executed. I will absolutely be looking into this game though and seeing what the vibe is because I'm definitely intrigued.
The title and header font you used is great as well. It has a kinda funky 70s vibe that totally fits.
I don't know if you can get much weirder fiction than, "A group of treasure hunters explores an unnaturally sticky house and backyard to find a dude whose brothers were cursed to clown-dance around him until he turned into a sad slime-person"
Great job!