The Walking Dead (franchise)
The Walking Dead is a media franchise created by Robert Kirkman and Tony Moore including a comic book series, two television series, six novels, video games, and various other media such as audio books and sound tracks.
Horror comics
At Image Comics, Robert Kirkman has created "The Walking Dead". Steve Niles predominantly writes horror comics, and his "30 Days of Night" has spawned a range of mini-series released by IDW Publishing. At Dark Horse, Mike Mignola has been working on "Hellboy", and has created a large fictional universe with spin-off titles like "BPRD" and "Lobster Johnson".