abandoned building 3d model

Modular post-apocalyptic apartment building environment kit for Unity and Blender. CRITICAL: DO NOT MERGE INTO ONE MESH. All components must be separate, individual objects on a snap grid: exterior/interior walls, damaged wall sections, floors, ceilings, roof, doors, door frames, windows, window frames, staircases, stair railings, concrete columns, beams, rubble, debris. Multi-story explorable structure with accessible interior, main entrance, corridors, apartments, hallways, stairwells, roof access. Visual style: Realistic, gloomy, abandoned, cracked concrete, exposed red bricks, broken glass, rusted metal, water stains, moss, debris. Game-ready optimized low/mid-poly geometry with realistic proportions for FPS/TPS combat and parkour. No characters, vehicles or standalone furniture.