Experience the game they're calling "the most creative 2d endless runner game of all time" - now even more terrifying!! nightmare adventure: slender man edition is the original 2d running action game for mobile based upon the slenderman urban legend and "der gromann" myth. see how long you can survive, with only your wits and speed to aid you! but this time there's a twist.. you're slenderman! how long can you survive in this fast paced runner/action game? caution: not intended for younger audience.