Hentacle is a VERY naughty card game of rampaging tentacle monsters. It has been an object of derision, fascination, controversy and upset ever since it was created (on a bet/dare). Eventually, a dishonest campaign managed to get it removed from its original hosting on RPGNOW/Drivethru and it was not available for some time.
Now it's back.
This is a downloadable file of Hentacle and all its expansions. You'll have to print-and-play for yourself. It's sister game and successor Cthentacle is also available and can be purchased in hard copy from The Gamecrafter.