If you are running the original physical disc version, you must apply the updates in a strict sequential order to avoid corrupting your game files: Install the base game ( Medieval 2: Total War 1.0).
If , I can help you confirm if your game is fully updated or suggest how to verify game files. If physical/CD , I can help you locate the official patches. medieval total war 2 15 patch verified
The manual v1.5 patch is region-locked. You must download the specific verified patch file that matches your disc's region: Gold Edition (US or UK) Standard US Retail Standard EU/UK Retail Step 2: Ensure v1.4 is Installed If you are running the original physical disc
The Total War Center Wiki provides links to historical sources like Sega and Gamershell. How to Verify Your Version (1.5) The manual v1