Goal: Build a large, highly detailed Gothic medieval castle ...

Goal: Build a large, highly detailed Gothic medieval castle inspired by cathedral-like high Gothic architecture mixed with fortress elements (Gothic + military). The castle should feel grand and believable: lots of rooms, logical layout, and a centerpiece Throne Hall, with rich exterior and interior decoration. Keep the main axis mostly symmetrical, but add tasteful asymmetry for realism (towers of different heights, side wings, balconies, buttresses).