This later entry into the Weapons & Warriors series has a single large castle (wall with drawbridge, 2 towers, and keep) that is under siege by an invading army with a Triple Blast Barrier and a Defense Shield. Weapons include a cannon, a crossbow, and 2 catapults. Castle Siege has quite a few more units overall than previous games in the series, adding new types including archers, knights, and battle tents. All opposing army units must be defeated for a player to win.