If game files are missing or corrupted, Steam may fail to initialize the game properly. Open your Steam Library and right-click DmC: Devil May Cry Properties Installed Files (or Local Files).
Overzealous antivirus programs often mistake the game's vital connection files for threats and block them. Open your antivirus software or . Navigate to the Protection History or Quarantine section. If game files are missing or corrupted, Steam
typically occurs when the game's executable cannot properly communicate with the Steam client, often due to permission issues, file corruption, or modern hardware compatibility bugs Primary Fixes Run Steam as Administrator Open your antivirus software or
How to Fix “Steam Must Be Running to Play This Game” (2026 Quick Fix) To fix the "Steam must be running to
Ensure that Steam.exe is also allowed through your .
To fix the "Steam must be running to play this game" error in DmC: Devil May Cry