Chivalry and Sorcerery

Chivalry and Sorcerery is one the older role-playing games that was first published in 1970s.

It is a game famous for it's approach to fantasy that is grounded in the historial Middle Ages, including a magical systems based on the beliefs that people of this time apparenlty help.

It's current incarnation is Chivalry and Sorcerery: The Rebirth, which is published by Britannia Games.