Clash of Kings, subtitled "A Tale of Arthur and Merlin", is an adventure published by Pacesetter Ltd in 1984 for their time-travelling role-playing game Timemaster Timemaster is a game in which players are time-travelling agents of a bureau that seeks to prevent the historical timeline from being changed.
[1] Clash of Kings is an adventure in which the player characters are sent back to Britain in 492 CE during the reign of Uther Pendragon.
[2] There they will meet dragons, Merlin, Arthur and the evil race of aliens called the Demoreans who are trying to damage the timeline.
[3] Although Pacesetter was short-lived, it produced several role-playing games within a one-year period, all based around the same house system of rules, with the first three being Chill, Star Ace, and Timemaster.
[4]: 197 Pacesetter also published several adventures for Timemaster, including Clash of Kings in 1984, designed by Mark Acres, with cover art by Susan Collins and interior art by Aubrey Beardsley and Stephen Sullivan.