Nights of the Crusades is an RPG that’s gotten lots of good reviews. The good news is that the pdf is free.
Fantasy
Dungeon Delver Card Game
Dungeon Delver is a free print and play card game of dungeon exploration.
Dungeon Quest RPG
Dungeon Quest is a free old school fantasy RPG.
Eye Candy: The Prancing Pony Inn
Here’s a set of photos of a wonderful wargaming rendition of the Lord of the Rings’ Prancing Pony Inn.
Verge RPG
Verge is a free RPG that bills itself as “Fantasypunk.” It’s set in a vast and ancient city.