He hit Apply. Then OK.
This is a classic legacy Steam fix that often resolves authentication errors between old games and the modern Steam client.
: Right-click the Steam shortcut and select "Run as administrator".
He clicked .
Sometimes the game doesn't have the permissions it needs to "see" that Steam is active. Completely close Steam . Right-click the Steam shortcut on your desktop. Select . Launch DmC from your library. 2. Verify Game File Integrity
Select Properties > Installed Files (or Local Files ). Step 3: Click "Verify integrity of game files..." .
Privilege conflicts can prevent DmC from recognizing that Steam is open. Running Steam as an administrator grants it the necessary permissions to sync with your games. He hit Apply
If you’re trying to launch DmC: Devil May Cry and getting the "Steam must be running" error even when Steam is open, you aren’t alone. This is a common bug often caused by administrative sync issues or corrupted API files. Here is how to fix it fast and get back to slaying demons. 1. Run Steam as Administrator
How to Fix "Steam Must Be Running to Play This Game" in DmC: Devil May Cry
Choose the tab (or Local Files in older Steam layouts). Click Verify integrity of game files . : Right-click the Steam shortcut and select "Run
for years, particularly on modern systems like Windows 10 and 11.
He opened his browser on his phone, typing frantically: "DMC Devil May Cry steam must be running to play this game fix top".