medieval castle gatehouse 3d model

A ruined medieval castle gatehouse with attached castle walls, designed in the same style as the matching decayed modular wall and shallow stair set. The main gate is open, with a heavy raised portcullis visible inside the entryway. Two large ruined stone towers stand on either side of the gate, connected directly to the main curtain walls. The entire structure is ancient, weathered, and falling apart, with cracked stone masonry, chipped edges, broken battlements, missing chunks, partial collapses, worn corners, loose rubble, moss, dirt buildup, and subtle vine growth. The gatehouse should feel massive and believable, with strong fortress architecture and a clear readable silhouette. Emphasize the open entry, damaged defensive details, ruined upper sections, and cohesive stone material matching the rest of the castle kit. Dark abandoned fortress atmosphere, plain background, focused on the structure only.