Scooby v Cthulhu. I wonder which one is going to have to make the sanity check?
Fickle RPG is
a narrative roleplaying and cooperative storytelling game, distinguished by the core dice resolution mechanic which has bluffing, bidding, and meaningful decisions. The game is a universal system that can be played in any genre, such as sci-fi, military, zombies, high fantasy, superheroes, etc. An ongoing campaign can be played over multiple game sessions, or as a themed one-shot.
Dread is a role playing game that uses an innovative mechanic — a Jenga game — to resolve actions and build tension.
There are both free and paid versions.
For those who like to get in on the ground floor, Wildfire Games has an open Beta Test of its new CthulhuTech RPG Core Book.
Living Dead is a set of free roleplaying rules for the zombie apocalypse.