No need for a crossover. nHunter is literally supernatural: the game. Basically, you play humans, who just happened to run headfirst into something that went bump in the night, and instead of going mad or dying horribly, pulled out a piece of rebar and beat it to death. and now you know there are things that go bump in the night, and instead of going quietly back to the light, you've decided to arm up and start putting them in the ground one-by-one. You literally play unenhanced humans, instead of buying powers, you spend exp on tactics (Vampires frenzy at the sight of fire, there's a tactic that lets you make a cooperative roll to have one guy knife them, while the other hits them with a torch (to cauterize the wounds so they can't regenerate them), makes your attack do aggravated (heals EXTREMELY slowly, immune to supernatural regeneration and lethal) damage, and causes the vampire to have to roll against frenzy.), literally plays out like supernatural, you've got a couple guys good at ganking things, you've typically got one dude running logistics support, one guys to smooth talk your way out of any hole. There's also 3 tiers, there's cells/compacts which are effectively the Winchesters (Cell, small tightnit group of hunters), and the bar they had in the first few ceasons (compacts, a group of cells that gathers and shares resources/information) -- the final ones, conspiracies, are large multi-national corporations that tend to have tons of resources and can give hunters actual powers (hellfire, body mods made from hunter parts, etc) - The Men of Letters. ----------------------- As for lore, hunters pretty easy to pick up, and it's got a splat book for each of the major enemy groups (Vampires, Wolves/ghosts, Slashers (Humans, but think more jason vorhees, or any of the shifter episodes of supernatural. Silent, quick, lethal, remorseless), and mages) -- complete with reasons hunters would be hunting them, and "Hunter-ized" versions of the enemies (Mages for instance, would be impossible for a group of hunters who didn't gank them from afar, as written in Mage: The Awakening, a 20 xp mage can literally increase the friction in the air to the point you rip your skin off walking through it with the flick of a hand -- They give "Hedgemages", which are mages using an alternative power source (Basically old ones, who have been asleep for millenia, but the use of magic makes them stir in their sleep -- their are entire hunter orders dedicated to taking them out before they wake something they shouldn't), but also much more limited in the scope of their power.) Hunter doesn't get enough love.