Caliburn’s Wrath is a set of free wargames rules from Matt Cappetta for the Arthurian period. The rulesCaliburn’s Wrath are “intended to represent intense clashes between small bands of foot soldiers.”
Jeff Herbert offers “Round Table,” a set of rules for a DBM Arthurian campaign. This would be a really interesting game, considering the fine Romano British figures now out from Gripping Beast and others.
Age of Arthur is a set of free wargames rules for Dark Ages Britain.
Age of Arthur is a set of free wargames rules for Romano-British skirmish games. This is a period that has long attracted my attention.
The Dark Age Wargaming Blog has a nice (long) article (in multiple parts) on the historical Age of Arthur. Doing an historical Arthur skirmish game has been one of my longtime goals.