Corrupted game files can cause the fatal error. To verify game files:
This ensures the core files responsible for talking to Steam are not corrupted or deleted.
Ensure your system meets the game's minimum requirements:
The "Fatal Error: Failed to initialize Steam" in Resident Evil 6
usually happens because of permission issues or compatibility conflicts between the game and the Steam client. Primary Fix: Run Steam as Administrator
Most players find that granting Steam administrative rights resolves this error immediately.
Exit Steam completely (check your system tray to ensure it's closed).
Right-click your Steam shortcut or the Steam.exe in your installation folder. Select Properties, then go to the Compatibility tab. Check "Run this program as an administrator". Click Apply and OK, then relaunch Steam and the game. Secondary Solutions
If running as administrator doesn't work, try these steps in order: How To Fix Steam Initialization Failed