A modular URP prison complex for horror games: 3-tier cellblock, 12 admin and service zones, guarded exterior, 800+ prefabs in two moods (Abandoned / Operational), interactive doors and lockdown.Made for the Universal Render Pipeline (URP 17.6), tested with Unity 6000.6.0f1.Built-in Render Pipeline and HDRP are not supported out of the box: all materials use URP Lit shaders and would need to be converted manually.The FBX models themselves work with any render pipeline; only the materials need to be set up again.Scary Horror Prison is a modular prison environment for horror, survival, stealth and exploration games in Unity's Universal Render Pipeline.Version 2.0 adds a complete modular kit and a new demo scene: a full prison complex with a three-tier cellblock, an admin and service wing, and a guarded exterior with watchtower, fences and gates. Every piece is a separate prefab that snaps to a 4 m grid, so you can build your own prison, from a single holding cell to a whole facility.TWO MOODS FROM THE SAME MODELSEvery surface material has a clean twin. Use the Abandoned set (dirt, rust, damp, debris) for horror, or the Operational set for a working prison. Each kit model comes as two ready prefabs, and the demo switches the whole scene with one key.WHAT'S INCLUDED (V2 KIT)- Architecture and circulation (77 prefabs): concrete, painted block, tile and brick walls, floors, ceilings, roofs and skylights, steel columns and beams, stairs, catwalks with railings, safety nets, barred walls and gates- Cells and doors (26): single, double, solitary and padded cells, cell row ends, sliding barred doors with track and motor, hinged doors, lockdown panels, cell furniture- Admin zones (54): intake, visiting room, guard control room, warden office, infirmary, morgue and solitary- Service zones (54): kitchen, mess hall, showers, laundry, boiler room, pipes and ducts- Exterior (45): enclosure wall, chain-link fences, razor wire, vehicle gates, sally port, guard booth, 12 m watchtower with searchlight, light and camera poles, yard furniture and ground tiles- Props (100): security equipment, restraints, lighting, safety, furniture, inmate items, storage, clutter and debris- Signs and decals: 72 ready sign, poster and map variants, and 21 decals (graffiti, blood, rust, mould, water stains, scorch marks, stencils, tally marks)- 356 Operational prefab variants: one clean variant of every kit modelINTERACTIVE SCRIPTS (C#, no third-party packages)Doors and gates (hinged and sliding), cellblock lockdown, lever panels, power outage, flickering lights, alarm beacon, sweeping searchlight, scare triggers and the mood switcher. Sounds are optional AudioClip slots, and UnityEvents let you hook your own logic.DEMO SCENEA complete prison complex built only from the kit prefabs (4,039 instances), with realtime lights, preset cameras and a simple first-person walker: E interact, F flashlight, L lockdown, P power cut, M switch mood.ALSO INCLUDEDThe original version 1 level (357 models and prefabs, admission hall, cellblock corridor, infirmary and records rooms) and its demo scene.Not included: characters, animations, audio files and gameplay beyond the scripts listed above. Lighting is realtime; nothing needs baking.- Unity 6 (6000.6), URP 17. Built-in and HDRP are not supported.- V2 kit: 356 models and 805 prefabs: 449 prefabs (including 72 sign variants and 21 decals) + 356 Operational variants- V1 level: 357 models and prefabs, and the complete level prefab (about 1.66 million triangles)- Metric scale (1 unit = 1 m), modular 4 m grid, storey height 4 m- Every model upright (Y up, Z forward), scale 1, pivot at the bottom centre; moving parts have their own hinge pivots- LODs: LOD0 and LOD1 on every V2 model (LOD1 about 40-60 % of LOD0)- Triangles (LOD0): about 982,000 for the 356 V2 models in total; heaviest model Watchtower_12m, 22,388- Colliders: separate simplified collision meshes (MeshCollider) on every V2 model- Materials: 78 surface materials (39 Abandoned + 39 Operational), 18 sign and 21 decal materials (V2); 46 materials (V1)- Textures: 1024 x 1024 PBR maps tiling every 2 m (41 BaseColor and 40 Normal for the V2 surfaces), 18 sign and 21 decal textures- Scripts: 10 runtime scripts (namespace PrisonKit, assembly PrisonKit.Runtime) and a demo walker that works with the Input System package or the legacy Input Manager- Rigging: No. Animation: No (doors and gates are moved by script). UV mapping: Yes, real-world scale- Documentation: README, QUICK_START (grid rules, building a cellblock, scripts, moods), ASSET_LIST, CHANGELOGBuilt with substantial AI assistance: the models were made with procedural Blender Python scripts, and the Unity setup and demo scene with editor scripts. The source images of the surface textures, signs, posters and decals were generated with an AI image tool, then processed into tileable PBR textures. Names and places shown on signs are fictional. Not photogrammetry or scans. All marketing images are rendered in Unity (URP) with the included assets.
