Your desktop is the table
The railway spreads over every monitor you give it. Zoom in on a station, glide back to see it all, or follow one train round the whole line.
Model railway builder & simulator
LocoSim
A model railway across your whole desktop. Lay the track over every monitor, set the signals, and watch it run itself. Then climb into the cab.
Made in the USA
Trailer
All the way round.
How it works
Build it. Then let it run.
LocoSim is a train set with no box to put away. Lay a little line or a whole network, and the railway works itself: trains keep to the signals, call at stations, shunt wagons and keep time.
Real track to lay
Straights, curves, turnouts, wyes, three-way switches, crossings, ramps up to hills and viaducts, tunnels, turntables, and flex track to close any gap.
Signals that work
An interlocking sets the routes, throws the switches and holds them for each train. Trains drive themselves on red, yellow and green, and never meet head on.
Ride in the cab
Take the throttle, brake and reverser in a 3D cab, with a caboose cam looking back, a whistle and bell, and a hula girl on the dash.
Passengers and freight
People gather at stations, busier at the rush hour, and ride where they're going. Goods trains carry grain from the farm to the factory and supplies back.
Day, night and weather
Let time pass from dawn to dusk to a night of lit windows and headlights. Rain wets the ground, snow settles on it, and you hear it fall.
Timetables and busy days
Run to a timetable drawn up from your own railway, with departures boards at every station. Football crowds, the harvest and engineering works turn up by the day.
A new railway in a click
Answer a few questions - which trains, how busy, what scenery - and LocoSim lays a working railway to fit your screens. Or open the showcase and watch everything at once.
Every sound made live
Steam's exhaust, the clack of each axle over the joints, a diesel's growl, rain on the cab roof and crickets at night - all made as it plays, with no recordings.
Everything on the table
More than a train set
Every kind of train runs on the same table, and the town around them is busy too.
- Steam
Engine, tender and coaches, puffing in time with its exhaust. Turned on the turntable and put away in the engine shed.
- Diesel
A red and silver streamliner, on passenger work or hauling the goods.
- High-speed
Power cars at both ends, on its own oval or a viaduct ring over the line.
- Monorail
Up on its beam at the high level, with stations of its own.
- Trams & trolleys
Down the middle of the town's streets under the overhead wire.
- Subway
In tunnels under the town, its stations just a stairway and a red M.
- Planes
An airport where airliners land, taxi to the gates and take off again, their passengers off to the train.
- Helicopters
Air ambulances to the hospital's rooftop pad, charters to the terminal.
Screenshots
Straight from the table
Pick up and play
Keys
Mostly it's the mouse: pick a piece in the workshop and click it down. Press F1 anywhere for the guide.
| On the table | Keys |
|---|---|
| Workshop, cab | W H |
| Follow a train, zoom | C Z · Ctrl+Wheel · Home to see it all |
| Turn, flip a piece | R F · PgUp PgDn change level |
| Undo, redo | Ctrl+Z Ctrl+Y |
| The day's report | D |
| In the cab | Keys |
|---|---|
| Throttle, brake | ↑ ↓ · PgDn PgUp |
| Forward, neutral, reverse | F N R |
| Whistle, bell | Space B |
| Throw the switch ahead | T |
| Auto-drive, uncouple | A U |
Coming soon
All aboard…
LocoSim is still being built. When it's ready to download, it'll be here. Until then we'd love to hear what you'd want on your railway.
Made in the USA
- OS
- Windows 10 / 11, 64-bit
- Screens
- One or more; best across screens on one graphics card
- Input
- Mouse and keyboard
- Sound
- Made live, no downloads