GHOST KING is the first entry in the fictitious Scott Adams Literary Adventure Diversions (S.A.L.A.D.) series, not-actually-launched in 1980 to adapt classic tales to 8-bit microcomputer adventures. Based on Hamlet by William Shakespeare and the style of Scott Adams and Adventure International. [IFDB]
See GhostKing.netlify.app for further details and for a DOS version of the game which you can play in your web browser.
See also the entry for Ghost King at the Interactive Fiction Database.
Ghost King was converted for use with BeebScott in 2021 by lurkio @ Stardot / ahope1 @ IntFiction.org.