Defender of the Crown is a strategy game set in medieval England. It was released for the CD-i platform in 1991, following its initial launch on other systems in 1986. The player assumes the role of a Saxon lord who must fight for control over England against Norman foes. The game blends strategic conquest with jousting and castle sieging mini-games. The CD-i version boasted enhanced graphics and sound, taking advantage of the CD-ROM format to deliver an immersive historical experience.