An isometric D&D-style map of Castle N.I.D.O., featuring an 'Atrium of Echoes' with a checkerboard floor and statues, and a 'Great Hall of Keys' with long tables and stained-glass windows.

Here is a detailed description of the Ground Floor of Castle N.I.D.O. for a D&D-style map generation AI, focusing on a grand, old, Hogwarts-like gothic castle with interconnected, functional spaces. Core Concept: The Heart & Crossroads The Ground Floor is the primary public level and the castle's bustling heart.It's not a modern "lobby" but the great entry and ceremonial level of a sprawling medieval fortress-school. Architecture is heavy, gothic, and layered with history—thick stone walls, vaulted ceilings, massive hearths, and grand staircases. The feel is one of imposing grandeur, ancient magic, and constant, hushed activity. This is where all paths intersect. Key Halls & Chambers: 1. The Atrium of Echoes (Main Vestibule): The first monumental space entered from the Bridge of Sighs. A cavernous, three-story hall with a checkerboard stone floor bearing the inlaid N.I.D.O. crest. Four colossal stone statues of the original founders line the walls. A majestic, unsupported marble staircase floats upwards to the library and dormitory towers. A large, enchanted parchment (The Proclamation Board) updates automatically with schedules, tournament standings, and messages. A raised duty desk is often manned by a senior student or professor. 2. The Great Hall of Keys: Directly accessible from the Atrium, this is the castle's true center. A breathtaking hall with a vaulted wooden ceiling, long narrow stained-glass windows depicting magical beasts, and a hearth large enough to stand in See more