Assetto Corsa Is Obsolete V1163 Is Required Fix Extra Quality 〈Top – 2026〉

Fix: "Assetto Corsa is Obsolete – v1.163 is Required" – A Complete Guide to Restoring Extra Quality & Stability

If you are a sim racer who heavily mods Assetto Corsa, you have likely been greeted by a frustrating red wall of text in the Chat Box or Console:

If the above fails, your actual game executable might be corrupted. Right-click Assetto Corsa in Steam > Properties Installed Files Verify integrity of game files Fix: "Assetto Corsa is Obsolete – v1

• Anisotropic Filtering: 16x
• Post Processing: ON (Use the "CSP" filter)
• Reflection Resolution: 1024x1024 (Medium) or higher.

4. Extra Quality Fixes for v1.16.3

To get the best visual/performance stability with v1.16.3: Anisotropic Filtering: 16x Post Processing: ON (Use the

How does this ruin Extra Quality?

When the game detects a version mismatch, it often falls back to a "safe mode" rendering path. This disables CSP features like: and clearing your system config

Adjust SSLR: Under Extra Quality, look at "Screen-space local reflections (SSLR)." If you experience flickering, set this to "Simple" or "High" instead of "Ultra."

Conclusion: Drive Again in Extra Quality

The error "Assetto Corsa is obsolete – v1.163 is required" is a tedious but solvable roadblock. It stems from a corrupted executable or a cache mismatch, not from the game's age. By verifying your Steam files, reinstalling CSP, and clearing your system config, you will not only join your favorite server again but also unlock the Extra Quality visuals that make AC a timeless masterpiece.

• [ ] Steam Verify Integrity → Restores v1.163.
• [ ] Reinstall CSP v0.2.3 → Restores Extra Quality.
• [ ] Delete assetto_corsa.ini → Removes obsolete flag.
• [ ] Set acs.exe to read-only → Prevents future errors.