Spirit of Excalibur is a 1990 role-playing game developed by Synergistic Software and published by Virgin Mastertronic, Inc. for DOS, Amiga, Atari ST, Apple IIGS and Apple Macintosh computers. The player is in control of a host of characters with the goal of uniting Sub-Roman Britain under a single king and defending the kingdom. The game was followed by the sequel Vengeance of Excalibur in 1991.