A modern realistic nuclear power station for building a plant floor and fitting it out. The shell is modular: 4 by 4 m floor slabs plain, hatched and hazard marked, 4 m precast wall panels plain and with a doorway, roof slabs, walkway grating, handrail runs, a stair tower and a cage ladder, so a hall of any size can be laid out and left open topped as a cutaway. In the reactor hall, 90 degree containment sections sawn through so a compartment can be seen into, one with an equipment hatch, the concrete cavity ring, a 5.8 m vessel head carrying thirty seven control rod drive mechanisms, a portal refuelling machine whose trolley traverses and whose mast runs down, a 12 m gantry crane with a traversing crab, a hook block that hoists, and the spent fuel pond in edge and corner bays with storage racks, a shielded flask, a fuel assembly on its cradle and a stand of spare rod clusters. In the turbine hall, a split turbine casing, a shaft line that turns between its bearing pedestals, a turbo generator, a condenser, feed pumps, a heat exchanger, a steam drum, pipe gallery bays with flanged gate valves, and a bank of six isolating handwheels. The control room is a curved three bay desk with switch fascias and instrument heads, analogue dial banks, a strip chart recorder whose paper drum turns, mimic boards, a rod position matrix, an alarm annunciator, a guarded scram push, instrument racks, a shift log desk, a key cabinet and a telephone rack. Health physics adds an area monitor pillar, a hand and foot monitor, a dosimeter rack, a PPE locker with suits, a decontamination shower, a survey bench, a sampling glovebox, waste drums and a hand drum stacker. The electrical side adds a transformer with a tap changer wheel, switchgear, a standby diesel, a battery stand, a ventilation fan and modular bus duct and cable tray runs on their own stanchions. Doors, airlock leaves, lockers, drawers, drum lids, the scram guard, valve and tap handwheels, the hose reel, the turbine shaft, the fan impeller, the chart drum, the crane crab, the refuelling mast, the stacker carriage and the hook block are named nodes on their own pivots and ship rigid open, close, spin, tilt, idle, trolley-open, trolley-close, mast-open and mast-close clips: node transforms only, no skinning and no people. Cabling, flexible hose, lifting ropes and chains, the pond water, steam and the ink trace on a chart are static, because a flexible run needs a joint per element and a trace is a shader rather than geometry, and neither is reachable with one rigid node transform. No real station, operator, utility, reactor vendor, instrument maker or regulator is named or depicted and no real site is reproduced: every dial face, mimic symbol, plate and tag is abstract or blank, and the trefoil is the public safety symbol used as a shape. Every file is self-contained CC0 geometry with no collision or navigation data.

Files load directly from the CDN. Choose the pieces you need. Colliders, navigation and gameplay scripts are supplied by your game.