Assuming you've not spent your life savings on the latest Kickstarter Bloodborne board game (those miniatures alone are tempting enough to justify remortgaging the house), you can nab the popular Bloodborne card game for a reduced $21.15 at Amazon right now - saving you not too cursed 40 per cent.
You'll get to fight all the unknowable horrors you know and love, take their blood and work your way through a labyrinthine nightmare too. Up to five folks can play, and games are relatively speedy - coming in at around an hour each. There's even healing to be had in the "Hunters Dream", just like in the game. It's both co-operative (you fight together) but competitive, in that you'll also be vying for the same loot.
Worth a shot for fans of both the game and just general cosmic horror. If you're looking for something less bloodthirsty, be sure to check out our round-up of the best storytelling games around.