AssettoServer

AssettoServer is a drop-in replacement for Kunos' dedicated server, written for the kind of server the original was never designed for — persistent freeroam sessions with dozens of cars, AI traffic and weather that changes while people are driving.

WHAT IT ADDS

AI traffic that drives the track's own spline, with configurable density, speed and lane behaviour — the thing that makes a public roads server feel like a road rather than an empty ribbon. Dynamic weather and time with real transitions, optionally driven from live conditions. Rain support through Custom Shaders Patch. A plugin API, and with it the ecosystem of gameplay plugins servers actually run.

It also fixes a long list of things the stock server does badly: collision handling, checksum behaviour, admin commands, logging, and the reconnect behaviour that used to drop half a server on a session change.

This is server-side software. Players joining a server running it need Content Manager and, for the rain and some plugins, Custom Shaders Patch — but they do not install this.

ABOUT THIS LISTING

This page describes AssettoServer by compujuckel. The description and screenshots are the author's own, imported from their listing on GitHub on 14 August 2026: https://github.com/compujuckel/AssettoServer

Mythiq hosts no files for it. The download button goes straight to the release file on github.com, so you are downloading from the author's own host, not from a copy of ours.

The download count, rating and comments on this page start at zero and count Mythiq only. The source's own figures are not copied here — they measure a different site, and a number that cannot be checked against our own ledger is not worth printing.

THIS IS A SERVER, NOT A MOD

It runs on the machine hosting the session. Installing it will not change anything in your own game.

CONTENT ON BOTH SIDES

Every car and track the server runs has to exist on each client, in the same version. Mismatched content is the usual cause of a checksum kick.

CSP FEATURES ARE OPT-IN

Rain, AI traffic behaviour and several plugins need clients on a recent Custom Shaders Patch build. The server can require a minimum CSP version rather than letting people join into a broken session.

1. Download the Windows server build with the button on this page and unpack it on the host machine. Linux builds are on the same release.

2. Copy your existing server configuration in, or start from the samples in the archive.

3. Configure extra_cfg.yml — this is where AI traffic, weather and plugins are turned on.

4. Open the ports the config declares (TCP, UDP and the HTTP port) on the host.

5. Run the executable and check the log: it prints the content it expects clients to have.