Getting Started with Assetto Corsa Modding

Assetto Corsa modding without Content Manager and Custom Shaders Patch is functional but punishingly inferior. The community's de-facto setup is so much better than vanilla AC that "modded Assetto Corsa" really means "Assetto Corsa with CM + CSP, plus content mods on top". This guide walks the standard install.

Step 1 — Install Content Manager

Content Manager (CM) is the community-built AC launcher. Download the free version. Run it; it auto-detects your Assetto Corsa install.

From now on, launch AC through Content Manager, not Kunos's launcher. CM is the entry point for everything: race sessions, mod installation, multiplayer browser, replay viewer.

Step 2 — Install Custom Shaders Patch

In Content Manager: Settings → Custom Shaders Patch → Install. CM downloads CSP and applies it.

You'll see options for stable vs preview CSP branches. Start with the stable branch unless a specific mod requires a preview build.

After CSP install, AC's graphics quality improves substantially even on the vanilla content — better lighting, better post-processing, smoother shaders.

Step 3 — Install Sol (weather and lighting overhaul)

Sol is a CSP-companion mod that adds modern weather, time-of-day cycles, and atmospheric effects. Almost universal install for modded AC.

Download from RaceDepartment, install through Content Manager (CM → Apps → New App → point at the Sol archive). Configure via the in-game CSP/Sol settings.

(Alternative: Pure, a competing weather mod. Different visual philosophy. Pick one, not both.)

Step 4 — Install car and track mods

Browse:

• RaceDepartment — the largest mod hub. Free downloads (some require account login).
• AssettoLand — community catalog.
• Overtake.gg — RaceDepartment's spiritual successor.

Mod archives typically contain a content/cars/ or content/tracks/ folder. Extract into:

• Cars: Assetto Corsa/content/cars/
• Tracks: Assetto Corsa/content/tracks/

Each mod becomes a subfolder. Content Manager picks them up on next launch.

Three popular first picks:

• A high-quality car mod from a reputable modder (search RaceDepartment's "Highest rated cars").
• A real-world track the base game lacks (Sebring, Watkins Glen, the Nürburgring Nordschleife — the vanilla version is okay, mod versions are often better).
• A CSP-aware skin pack for a vanilla car.

Step 5 — Configure CSP per-track

CSP exposes per-track settings: lighting profile, weather conditions, time of day. Configure these per session in CM's session setup screen.

Sol provides preset weather schemes (Clear Day, Heavy Rain, Light Rain, Cloudy) you can pick from.

Step 6 — Multiplayer

CM's Online tab lists active AC servers. Each server shows its required content (cars, tracks). If you don't have the right content installed, CM shows a "Missing content" warning and (for public mod content) offers to download.

For private leagues: coordinate the exact mod list and version. AC's multiplayer is strict about content matching.

Common gotchas

• CSP not loading. Reinstall CSP through CM. Some manual CSP installs miss the registry entry CM needs.
• Sol + Pure both installed. Conflict. Pick one.
• Mod track texture missing. Mod was poorly packaged. Re-download.
• Multiplayer can't find content. CM's auto-download works for some public mods; for private league content, you'll need to source it manually.
• Performance dropped after CSP. Lower CSP quality settings via the in-game CSP menu. Sol's weather options have a "Performance" mode worth trying.

If you've never sim-raced, Assetto Corsa with mods is one of the best entry points — but it's also a deep enough rabbit hole that you can spend a year just configuring CSP. The community's wiki and Discord are invaluable.