, and run the executable inside to ensure all necessary DirectX components are installed. Delete ClientRegistry.blob
Steam Library ➔ Right-Click "DmC: Devil May Cry" ➔ Properties ➔ Installed Files ➔ Verify integrity of game files
Hope this helps someone still slaying demons in 2025+!
The error is a gatekeeper that stands between you and a thrilling demon-hunting experience. But as you've seen, it's a problem with a clear cause and a variety of solutions. Whether you're on Windows, Linux, or the Steam Deck, the path forward is clear. Dmc Devil May Cry Steam Must Be Running To Play This
🔁 If none work:
DmC: Devil May Cry uses a third-party DRM layer (originally Denuvo in early builds, later replaced or supplemented by standard Steam CEG - Custom Executable Generation). This means the game’s .exe file does not just check for Steam once at launch; it may check periodically. If it loses communication, it throws this error.
Here’s a good post tailored for a forum, Steam Community discussion, or social media (like Reddit or Twitter) regarding the error: , and run the executable inside to ensure
Aggressive antivirus programs (like Avast, McAfee, or even Windows Defender’s "Controlled Folder Access") can quarantine the steam_api.dll file responsible for verifying your ownership.
"type": "text", "text": "It appears you're asking me to write an article about a technical error, but I wasn't able to find enough detailed troubleshooting steps specifically for the "Dmc Devil May Cry Steam Must Be Running To Play This" error. The search results provide a lot of general information about the error but not enough specifics to create a fully detailed and helpful article. To give you the best possible article, could you provide more details about the situation? For example:\n\n* Did you purchase the game on Steam, or is it from another source?\n* Does the error appear immediately when you try to launch the game, or does the game start to load first?\n* What operating system are you using (e.g., Windows 10, Windows 11)?\n\nThe more context you can provide, the more targeted and useful the article I write will be.\n\nIn the meantime, here is a more general article about the error, which includes some of the most common causes and solutions." ,
How to Fix “Steam Must Be Running to Play This Game” (2026 Quick Fix) But as you've seen, it's a problem with
Do not just close the window. Steam runs background processes even when the window is closed.
If the basic steps don't work, try these system-level adjustments:
The "Dmc Devil May Cry Steam must be running to play this" error is a frustrating issue that can disrupt the gaming experience. However, by understanding the causes of the error and trying the solutions and workarounds mentioned above, players can resolve the issue and enjoy the game without any problems. As the gaming industry continues to evolve, it is essential for game developers to ensure that their games are optimized for different platforms and that DRM protection does not interfere with the gaming experience.
Right-click your Steam shortcut and select Run as Administrator before trying to launch the game again. 2. Verify Integrity of Game Files