medieval fortress 3d model

Create a 15×15 stud square medieval fortress/castle game asset for Roblox. Shape & Layout Perfect square-shaped fortress, exactly 15 studs × 15 studs Four straight walls forming a symmetrical square One large OPEN gate centered on each of the 4 sides Front, back, left, and right sides must all have identical or near-identical open gate entrances The gates must be completely open, with no doors blocking the entrances Each gate must create a clear walkable passage directly through the wall The interior must remain open and accessible from all four directions Keep the four entrances aligned with the center of each side Castle Structure Thick dark medieval stone walls Square corner towers or reinforced corners Medieval battlements and crenellations along the top Large arched gate openings Heavy stone/metal gate frames surrounding each opening Keep the architecture chunky and readable for Roblox Demonic Theme Black and dark charcoal stone Deep dark-red/crimson accents Demonic glowing