Warrior and Wizard is an RPG and Combat game apparently inspired by The Fantasy Trip.
Role Playing Game
JAGS Revised Free RPG Rules
JAGS stands for Just Another Game System and is described as a “rules heavy” universal RPG system. It’s gotten some notice around the ‘net and is available for free as a pdf or you can pay to get a print version.
The Basic Fantasy Role Playing Game
The Basic Fantasy Role Playing game is just that — a role playing game released under the Open Game License. it’s based on the d20 3.5 rules, but takes its inspiration from old school role playing.
Buffy The Vampire Slayer RPG
A lite version of The Buffy The Vampire Slayer RPG rules are available at the BBC, of all places.
Pocket Dungeon Game
Pocket Dungeon is a small, solo dungeon game that uses the pocketmod small booklet printing system.