Assetto Corsa Is Obsolete V1163 Is Required Link ((top)) -

Although less common for this specific error, mods for tracks, cars, or physics can sometimes try to load data that references an older game version. If you have a very old car or track mod installed, it might contain configuration files that are looking for the v1.16.3 file structure. When CSP reads that, it may become confused and incorrectly flag the game as outdated.

In Content Manager's settings, there is an option to "Replace original acs.pdb with a recommended version." Sometimes, when updating or changing CSP versions, this file can become corrupted.

Alternatively, as suggested by Steam Community users, try to re-install or re-apply the CSP within Content Manager. Important Tips for 2026 Modding assetto corsa is obsolete v1163 is required link

If you are already on the newest version, try downgrading by one version, then upgrading back to force a clean reinstall of the patch. 4. Manually Check the Game Root Path

If you aren't using the dedicated Content Manager app, you are missing out on the best way to manage updates and mods. Although less common for this specific error, mods

Content Manager needs specific permissions to read the version data from your Steam directory.

Navigate to your primary game deployment directory (typically located at C:\Program Files (x86)\Steam\steamapps\common\assettocorsa ). In Content Manager's settings, there is an option

The “Assetto Corsa is obsolete (v1.16.3 is required)” error is far less intimidating than it sounds. It's not a verdict on the state of your game, but rather a minor communication glitch between your modding tools and your base game files.

If you own Assetto Corsa on Steam, this error should not appear. If it does, your game files are likely corrupted, or Steam hasn't updated properly. Open and navigate to your Library . Right-click on Assetto Corsa and select Properties . Go to the Installed Files tab. Click "Verify integrity of game files..."

The error message is slightly misleading. It does not mean your base game is outdated if you bought it on Steam. It usually indicates a mismatch between your Content Manager launcher, your CSP (Custom Shaders Patch) version, or a corrupted game file registry.

Note: Steam may try to “repair” the file. To prevent this, launch the game directly from Content Manager with the “Force 32-bit” option disabled (or enabled, depending on mod). You can also set your Steam to “Only update this game when I launch it” and never launch via Steam.