Living Dead is a set of free roleplaying rules for the zombie apocalypse.
horror
Pulp Horror Comics and Stories
Comic Book Plus has a collection of free pulp horror comics and stories.
Ravensblight Manor
Ravensblight Manor is a free paper model of a haunted house. I took a look at it, and think that it would be just about the right size for 25mm – 28mm figures.
Contagion Role Playing Game
Contagion is a role playing game of modern horror, in which the forces of Heaven and Hell are fighting for the souls of mankind.
Unheroic Samurai
Unheroic Samurai is a set of free wargames rules for combat with classical Samurai versus undead horrors.