The undead is immune to the cold , the sun and even the sharpest blade youll ever make , can you survive this impending doom? the obstacles are ;
-you need to worry about your warmth and thirst too now.
-the zombies have evolved to follow scent and noise to find you.
-with a low chance , bloodmoons can happen causing zombies to spawn at an alarming rate , and not disappearing when the bloodmoon ends.
-the zombies do not burn in the morning now.
At least you have these that might help you survive ;
-a new set of weaponry , both medieval and modern.
-better fps :D
-barb-wired fences to protect you.
-new food types.