This is a highly detailed Underground Survival Bunker 3D model, originally blocked out in SketchUp and fully enhanced in Blender 3.4 with optimized PBR textures. The model includes a complete cutaway section showcasing a realistic bunker interior designed for games, cinematic scenes, architectural visualization, and post-apocalyptic environments.

The bunker features a functional entrance shaft leading from ground level into the underground room. The ground area contains grass, plants, flowers, a tree, and an electric pole with wiring routed directly into the underground distribution box. The DB supplies power to interior switches, lighting, refrigerator, and other devices exactly as shown in the previews.

The interior section includes weathered walls, metal bunk beds, storage boxes, a ventilation system, pipes, a kitchen counter, cabinets, chairs, and small props. All faces, UVs, and normals are clean and properly adjusted. The model is exported in multiple formats and works perfectly in any game engine without errors.

This asset is fully optimized for real-time performance and ideal for survival games, abandoned scenes, military bases, fallout shelters, or story-driven environments.