See which train simulators support multiplayer and learn how to join, host and fix common online session problems.
Some train simulators have multiplayer, but support depends on the title. SimRail, Run8, Trainz, Open Rails and co-operative railway sandboxes can be played online; Train Sim World and Train Simulator Classic have no native multiplayer. To join, every player usually needs the same simulator version, route, rolling stock and session content.
Which train simulators have online multiplayer?
There is no universal train-simulation network: each multiplayer title uses its own servers, sessions and compatibility rules. These are the main options and the type of online play they provide.
| Simulator | Multiplayer model | Best suited to | Main catch |
|---|---|---|---|
| SimRail | Public online servers with driver and signal-box roles | Timetabled passenger and freight operation with human signallers | Available trains and roles depend on the selected server and session |
| Run8 | Hosted server sessions with dispatching and shared railway operations | Detailed North American freight operation | Groups may require particular routes, assets and matching updates |
| Trainz | Multiplayer Driver sessions in supported editions | Operating community-built routes and sessions | Every participant needs the session's required dependencies; features vary by edition |
| Open Rails | Host-and-client multiplayer sessions | Operations using compatible legacy routes and custom content | Players generally need matching builds, routes and rolling stock |
| Railroader | Host-led co-operative play with a shared railway company | Switching, freight movement and railway management | It is an operating sandbox rather than a strict timetable simulator |
| Railroads Online | Hosted co-operative railway building and operation | Building and running a narrow-gauge network with friends | Construction and sandbox play take priority over formal main-line procedures |
How do you play a train simulator online?
Playing online usually involves five steps, although the exact menus differ between simulators.
- Choose a simulator with genuine multiplayer. An online account, downloadable content, leaderboards or shared scenarios do not necessarily mean that several players can occupy the same railway.
- Match the edition and platform. Install the same release and available updates as the other players. Do not assume PC and console editions support cross-play unless the simulator explicitly provides it.
- Install the required route and assets. Hosted sessions may depend on a particular route, locomotive, wagon pack or community asset. Our comparison of community-content support across train simulators explains which titles are most suitable for custom routes and free add-ons.
- Join or host the session. Public-server titles normally provide a server browser. Host-based simulators may instead require a session code, server address or direct connection. Permit the simulator through the local firewall, but only configure router port forwarding when the simulator's documentation requires it.
- Select a train or operating role. Some sessions assign complete services; others let players spawn trains, perform yard work or control signalling. Follow the host's operating rules because one player passing a signal at danger can disrupt everyone else's session.
Voice communication may not be built into the simulator. For organised operations, players often use a separate voice service and agree on train reporting names, locations and dispatcher instructions before moving.
Why can’t I join a multiplayer session?
Most failed connections are caused by mismatched software or content, not by driving controls. Check the following in order:
- Version mismatch: update every computer to the same simulator build, then restart before reconnecting.
- Missing dependencies: confirm that the exact route, rolling stock and scenario assets are installed. Two packages can have similar names but different revisions.
- Modified files: temporarily disable physics, signalling or rolling-stock modifications that other players do not have.
- Session restrictions: the server may be full, password-protected or limited to approved roles and trains.
- Firewall or NAT problems: allow the application through the operating system's firewall. Direct hosting can fail behind carrier-grade NAT even when joining public servers works.
- Account or entitlement problems: make sure the required online account is signed in and that the host is not using content unavailable to a participant.
A mistake we see constantly is changing router settings first. Test a simple session using unmodified base content before touching the network configuration; if that works, add the intended route and assets one group at a time.
Can Train Sim World or Train Simulator Classic be played online?
Train Sim World and Train Simulator Classic cannot place multiple drivers or signallers in one synchronised railway through built-in multiplayer. We cover why Train Sim World remains a single-player simulation and what Train Simulator Classic's online features and shared-play alternatives actually provide separately.
Online profiles, leaderboards, community downloads and content sharing are online services, not live multiplayer. A group can run the same scenario separately while talking over voice, but train positions, signals, delays and dispatcher decisions will not be synchronised between computers.
Which type of train simulator multiplayer should you choose?
- Choose SimRail for accessible public sessions combining train driving with human-controlled signal boxes.
- Choose Run8 for detailed North American freight operations with an organised group willing to coordinate routes and assets.
- Choose Trainz or Open Rails when custom routes and community-created operating sessions matter more than simple setup.
- Choose Railroader or Railroads Online for relaxed co-operative building, switching and shared railway management.
- Choose Train Sim World or Train Simulator Classic only if single-player cab operation is acceptable and a synchronised shared railway is not required.
The practical dividing line is synchronisation. If you need other players' trains, signals and dispatcher commands to affect your own cab in real time, choose a simulator with native multiplayer rather than relying on an online profile or separately run scenarios.