Duke of Defense is a tower defense game developed by Sebastian Nigro, available on Nintendo Switch. In this game, you play as a knight who must protect the kingdom's castles from waves of enemy creatures. The game is set in three different biomes, each with its own unique challenges. The game features tower building, upgrading, and selling, as well as player upgrades, enemy waves, and all enemy types.

What sets Duke of Defense apart from other tower defense games is that you play as the knight directly on the battlefield. You must use your movement, rolling, and combat skills to fend off the enemy while constructing towers to aid you. The game also features a hub world and menus, where you can access different levels and upgrades. Moreover, the game has a 2-player shared screen multiplayer co-op mode where you and a friend can defend the kingdom together, with all resources shared between you.

Overall, Duke of Defense is an engaging and challenging tower defense game that offers a unique twist to the genre. The game's clever resource management skills and cunning strategies make it a must-play for strategy game fans.