Sim Connect / Free for personal use

Get your friends on the grid.

Free multiplayer for Assetto Corsa. Link your own machines into one private mesh and race wheel to wheel from home. No port forwarding, no rented server, no fees.

Get Started Free See how it works

Free foreverPrivate meshAssetto CorsaWindows

Sim Connect is for personal use. It is made for racing at home with friends, not for running a business. If you operate a sim racing venue, SimControl is the commercial platform built for that.

See SimControl

A private mesh, not a public server.

Sim Connect links your computers into one secure network and runs the session peer to peer. Hosting takes minutes and stays entirely yours, with nothing exposed to the public internet.

Install on every PC

Each driver installs the free Windows app on the computer running Assetto Corsa.

Join the private mesh

Sim Connect builds a secure mesh with Tailscale, so rigs link directly with zero port forwarding.

Pick cars and tracks

The host chooses from the visual car and track library and dials in the session rules.

Race together

Everyone joins the same session over the mesh and goes wheel to wheel, no dedicated server needed.

Powered by the Tailscale mesh. Every rig connects directly over an encrypted private network, so there is nothing to port forward and nothing exposed to the public internet.

Host the session your way.

The host sets the rules before the grid forms. Pick the track and class, set the length and the conditions, then lock it down to your group.

Track and class: Pick any car and circuit from the library.
Race format: Laps or a timed race, you set the length.
Conditions: Weather and time of day to set the scene.
Realism: Tune tire wear, fuel use, and damage.
Access: Password lock so only your mesh can join.
Assists: Allow or disable driving aids for the grid.

On the grid in five steps.

From download to first lap. Most groups are racing within ten minutes of installing. All you need is Assetto Corsa on each PC, the free Sim Connect app, and friends to race.

Download Sim Connect

Grab the free Windows installer. No account and no credit card required.

Install on each computer

Run the installer on every PC that will race, then sign in to your group.

Create or join the mesh

Spin up a private mesh or accept an invite to link every rig directly.

Choose cars and tracks

The host picks from the visual library and sets the session rules.

Launch and race

Everyone joins over the mesh and lines up on the grid in Assetto Corsa.

Get your grid online tonight.

Grab the free Windows installer, link your rigs on a private mesh, and race Assetto Corsa with friends tonight. Sessions and league nights are in the Discord.

Get Started Free Join the Discord

Running a venue? Sim Connect is for personal racing only. SimControl adds full rig control, automatic point of sale, and venue-against-venue league nights for commercial floors. Explore SimControl or see pricing.