Brittannia Game Designs Ltd. is the United Kingdom company that currently publishes the role-playing game Chivalry and Sorcery. It was originally founded to produce supplements for Chivalry and Sorcery. At that time it was in its third edition and published by Highlander Games. Brittannia bought out the rights and published the 4th, Rebirth, edition.

It is managed by Steve Turner, who also organised the annual Dudley Bug Ball role-playing convention in Dudley.

He has been known to use the benefit of his location to research medieval England and France.