If you are using a non-official version of the game, this error typically occurs because the required Steam emulator (like Goldberg) or "crack" files are missing or have been quarantined by your antivirus. Check your to see if any .dll files (like steam_api.dll ) were recently removed. If you’d like more specific help, let me know:
In some instances, the Steam client fails to recognize the specific hash of the game executable. A known workaround involves renaming the executable to force Steam to re-evaluate the launch path. how to fix failed to initialize steam resident evil 6 free
Resident Evil 6 relies on older Microsoft Visual C++ packages. If you are using a non-official version of