long interior hallway 3d model

Extremely long interior 3D tunnel structure of a modular Victorian horror mansion corridor, with a strict 1:1:5 elongated aspect ratio shape. Dimensions are explicitly 3 meters wide, 3 meters high, and 15 meters long, creating a very deep and elongated rectangular hallway segment. Symmetrical game architecture featuring two long parallel vertical side walls on the left and right, a solid plaster ceiling on top, and a narrow wooden floor panel on the bottom. Dark peeling damask wallpaper with green mold stains on the left wall, identical damaged peeling vintage wallpaper on the right wall, a highly cracked plaster ceiling with water leaks, and weathered dark wood floor planks underneath. Low-poly game-ready modular environment, linear perspective looking straight down the deep long hall, survival horror video game style, eerie ambient mood, photorealistic textures, optimized topology for Unity 3D engine, no unified single mesh cube, explicitly elongated individual architectural tunnel