The world is very much like our own-- you can buy a burger from Burgerville, or a "burger" from Arby's. Shakespeare shook the stage, Mansa Musa was the richest person in history, and Beyonce's still the best. It's 2019, Twitter's a mess, and Donald Trump's somehow president.
In this world, however, the Second Amendment of the US Constitution reads:
A well regulated Militia, being necessary to the security of a free State, the right of the people to keep monsters and bear Arms, shall not be infringed.
Everybody knows the statistics, at least vaguely. A lot of folks get messed up each year by some sort of something-or-other, dire wolves or chupacabras or little mermaids or whatever. And maybe it happens a lot, but not more than guns, and definitely less than cars. Besides, it's technically legal. Better not to think about it-- non-logical lifeforms happen to other people. You know, certain types. At the edges of things.
The roleplaying game we're using is called Monster of the Week, based on an easy-to-learn, easy-to-play system called Powered by the Apocalypse. While there are still rules and numbers and ample opportunities to kick ass, this system emphasizes collaborative, conversational storytelling and improvisation by characters and Keeper alike.