That would be a fun 2 week league . Monsters all fight each other and you only get XP if you land killing blow . <| sep |> I think 30 Days of Night did a good job with making vampires more scary . I think the philosophy is about taking away a lot of human elements spoken language , body language , normal movements , etc . and replacing them with more animalistic motions and utterances . Once that has been worked out , start brainstorming ways to make them more unpredictable . I think building tension over the course of 510 minutes , or perhaps the entire movie with eerie music or no music is more effective than the jump scares and ' spooky ' violins and crap . I can ' t speak for everyone , but the soundtrack for the movie Sinister was awesomely scary . That ' s all I ' ve got , good luck !