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To install CSP (Custom Shaders Patch) for Assetto Corsa, first install Content Manager from the official site, assettocorsa.club or acstuff.club/app. Open Content Manager, go to Settings > Custom Shaders Patch and let it install the patch. Content Manager is a free launcher (the Lite version is enough). CSP needs Assetto Corsa 1.16.3 or 1.16.4, 64-bit. Both run on your PC, not on the server.

What are Content Manager and CSP?

  • Content Manager (CM) is an alternative launcher for Assetto Corsa. It handles quick drive, online servers and your cars, tracks, skins and mods, and can build server presets.
  • Custom Shaders Patch (CSP) is an extension for Assetto Corsa. It adds dynamic lights, a scriptable weather engine, extra visual effects, physics extensions and fixes. Weather mods such as Pure and many online servers rely on it.

Before you start

  • Assetto Corsa installed through Steam and updated.
  • Windows Vista or later, .NET Framework 4.5.2, the Visual C++ 2015 (x86) Redistributable and the DirectX June 2010 runtime (from the Content Manager page).

Step 1: How to install Content Manager

1

Download from the official page

Download Content Manager from assettocorsa.club/content-manager.html or acstuff.club/app. Avoid copies on other sites.
2

Extract and run it

Extract the archive into a folder of its own and run Content Manager.exe.
3

Point it to Assetto Corsa

When asked, select your Assetto Corsa install folder (the Steam game folder). Content Manager then lists your cars and tracks.
If Content Manager can’t download its plugins on first start, use the Offline version from the download page. It comes with the plugins already included.

Step 2: How to install Custom Shaders Patch

1

Open the CSP settings

In Content Manager, open Settings and then Custom Shaders Patch.
2

Install the patch

Content Manager offers to install the patch and download its configs. Follow the prompt to install it. The recommended version (v0.2.11 on 30 October 2026) is the safest choice for online racing.
3

Start the game from Content Manager

Start a quick drive from Content Manager. CSP is now active, and its options appear under Settings > Custom Shaders Patch.

How to update CSP

Open Settings > Custom Shaders Patch in Content Manager again. It offers to update the patch when a newer version is available. Online servers that require CSP state a minimum build, so update when a server asks you to.

What are CSP preview builds?

Preview builds are early versions of CSP. The Content Manager page says they are available to supporters through Patreon or Boosty. You don’t need them for normal online racing. Install them only if a server or mod you use requires a preview build.

Does my Assetto Corsa server need CSP?

No. CSP and Content Manager run on players’ PCs. The server stays the official Kunos server. As an owner you can, however, make your server require CSP so everyone races with the same features. See enabling CSP features on your server.

Frequently asked questions

Is Content Manager free?

Yes. The Lite version is free and includes the main features. A key from supporting the developer unlocks work-in-progress features and pre-release builds.

What is CSP in Assetto Corsa?

CSP is Custom Shaders Patch, an extension that adds dynamic lighting, weather, visual effects and physics extensions to Assetto Corsa. You install it through Content Manager.

Why does a server say I’m missing CSP features?

The server requires a newer CSP than you have. Update CSP in Content Manager. See missing CSP features.

Can I install CSP without Content Manager?

Yes. The CSP README describes a manual install: copy the patch files into the Assetto Corsa root folder (or use JSGME) and extract the configs into assettocorsa/extension. Content Manager is the easier route and keeps CSP updated.

Assetto Corsa server guide

Every Assetto Corsa page in one place.

Missing CSP features

Fix the error and require CSP.

Sol and Pure weather

Weather mods built on CSP.

Content Manager server presets

Build your server in Content Manager.

Checked against the official Content Manager and Custom Shaders Patch pages and the CSP README on 30 October 2026. Versions and menus may change with new releases.

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Last Updated: October 2026