The Iron Fortress is a massive, imposing structure with a dark, semi-realistic feudal Japanese design. Its walls are constructed from thick, weathered iron plates, featuring intricate engravings of dragons and samurai warriors, symbolizing strength and resilience. The fortress has a towering, angular silhouette with sharp, defensive spikes along its battlements, and its surfaces show signs of battle damage, including deep scratches and dents, adding to its ominous presence.