King Arthur casts the player as the prophesied Arthur, heir to Uther Pendragon, seeking to claim the throne of Britannia. Its story-led campaign frames that legend as a sequence of chapters, with objectives and decisions that shape how events unfold and which ending emerges. The premise draws on a mythic Britain where magic, saints, faeries and human rivals share the same contested realm.
The strategic layer unfolds on a three-dimensional map, where seasons change and heroes can conquer provinces or pursue adventures. Arthur recruits knights for the Round Table, develops their skills and spells, and equips them with magic items; choices on a morality chart can steer him toward Christian rule or the Old Faith, as well as a rightful or ruthless reign. Quests take the form of short stories in which a chosen knight makes consequential decisions, sometimes leading to battles on dedicated maps.
Those encounters shift into real-time fantasy battles, where armies, heroes and monsters fight across large battlefields. Tactical possibilities draw on unit strengths and weaknesses, hero abilities and spells, while the wider campaign adds province management and character progression. Its defining structure is a mix of role-playing choices and wargame command, rather than one continuous battle mode.