Castle Defense
Iron Keep Eternal Siege
An original endless castle defense challenge with responsive controls, escalating hazards, and hard progressive levels.
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Build a compact defense around a winding route while enemy health and speed rise forever.
Iron Keep Eternal Siege is an original GamesJi HTML5 game. It runs locally in the browser, supports touch and keyboard input, requires no API, and increases challenge continuously.
How to play
Place towers outside the route, mix tower roles, and save energy for later high-health waves.
Hard endless mode: speed, enemy pressure or decision difficulty rises as you progress. Pause with P and restart with R or Play Again after a run.
Controls: Select tower: 1/2/3. Place: tap/click beside the route. Pause: P.