Knights Castle

You control a single knight, moving left and right along the battlements with the arrow keys. Enemy soldiers and creatures approach from both sides, and you swing your sword with the spacebar to stop them. The main goal is to prevent any attackers from breaching the castle gate. You can also cast spells by bringing up a menu, which adds a layer of strategy to the simple combat. The waves come steadily, and the difficulty builds in a predictable way. It feels like holding a narrow line against a persistent tide.