Age | Of Empires 2 Definitive Edition Tampering Detected

Age of Empires 2 Definitive Edition: How to Fix the "Tampering Detected" Error

Few games have stood the test of time like Age of Empires II. Since its release in 1999, it has evolved into the Definitive Edition (DE)—a visual and mechanical masterpiece. However, with the added layers of anti-cheat protection and cross-network synchronization (Crossplay), players have encountered a frustrating roadblock: "Tampering Detected."

1. Uninstall all mods.
2. Disable all non-essential background applications.
3. Verify game files.
4. Contact support at Age of Empires Support with logs from %PROGRAMDATA%\Age of Empires 2 DE\logs\

1. Go to Windows Security > Virus & threat protection.
2. Click Manage settings > Add or remove exclusions.
3. Add the following folders as exclusions:

   If the system finds a mismatch—even a tiny one—it throws the tampering flag to prevent potential desyncs or exploits.

   Despite the scary phrasing, this error rarely means you’ve actually been hacked or caught "cheating." Instead, it’s usually a false positive triggered by the game's anti-tamper security suite. Why Does This Happen?