Under the tab, check Run this program as an administrator .
To resolve this issue and ensure a stable, high-quality gameplay experience, follow these steps in order: 1. Run Steam and DmC as Administrator
Giving the applications administrative rights ensures they have the necessary permissions to communicate with each other. completely from the system tray. Right-click your Steam shortcut and select Properties . Under the tab, check Run this program as an administrator
Corrupted or missing files can prevent the game from detecting Steam correctly. Open your . Right-click DmC: Devil May Cry and select Properties .
Repeat these steps for the game's executable (found in your Steam library under Manage > Browse local files ). 2. Verify Game File Integrity completely from the system tray
Locate the and delete it (this will not delete your games). Restart Steam and log back in. 4. Configure Firewall Exceptions
Old configuration data can cause launch errors. Refreshing these files can force Steam to re-authenticate the game. entirely. Press Win + R , type %localappdata% , and press Enter. Open your
Go to and click Verify integrity of game files . 3. Clear Steam's Local Cache
The "Steam must be running to play this game" error in typically occurs because the game's executable cannot establish a handshake with the Steam client, often due to permission issues, corrupted cache files, or firewall blocks. Troubleshooting the "Steam Must Be Running" Error