Go to your game's installation folder (usually Steam\steamapps\common\Far Cry 2\bin\ ).

Open Dunia.dll with a hex editor and find the sequence 85 C9 74 16 8B 44 24 04 50 E8 . Change it to 85 C9 EB 0E 8B 44 24 04 50 E8 .

Are you using the , Ubisoft Connect , or a physical retail version of the game?

Alternatively, community members on the Steam Community have developed an open-source unlocker that automates this fix. 2. Official SecuROM Manual Activation

Ubisoft officially shut down the multiplayer servers for Far Cry 2 on June 1, 2022, so online features and official "Online Keys" are generally no longer functional.

If the game launches but bonus missions are locked, you can manually trigger them in the Windows Registry:

Open regedit and go to HKEY_CURRENT_USER\Software\Ubisoft\Far Cry 2 .

If you have a retail key but the automatic internet activation fails, you can try Ubisoft's manual unlock page: Visit the Ubisoft - SecuROM Support page.