Here’s a clear, detailed write-up to help users fix the “Steam must be running to play this game” error for (often searched alongside “extra quality” mods or settings). The guide includes both standard fixes and advanced tweaks for a smoother experience.
Navigate to: %LOCALAPPDATA%\DmC Devil May Cry\Saved\Config\WindowsNoEditor (Or ...\Documents\My Games\UnrealEngine3\DmCGame\Config )
Extra: Improve game quality (graphics)
If you need help or want instructions on how to manually restore a missing DLL file , just let me know! Share public link Here’s a clear, detailed write-up to help users
If the error persists after trying these steps, your next logical step is to check if you have any lingering third-party mods installed that might be breaking the game's startup sequence. Would you like instructions on how to or learn how to manually re-register the Steam API DLL file ? Devil May Cry 5 - General Troubleshooting Guide - Steam
If you have multiple hard drives and recently moved the game, remnants of the old installation path registry entries might be confusing the game launcher.
, try the following steps in order, as they address common causes like permission conflicts, corrupted cache, or missing dependencies. 1. Run Steam and the Game as Administrator Share public link If the error persists after
Open Windows Security (or your third-party AV). Step 2: Go to Virus & threat protection > Manage settings > Exclusions . Step 3: Click Add exclusion > Folder . Step 4: Navigate to and select your steamapps\common\DmC Devil May Cry folder. Step 5: Also exclude your main Steam folder (e.g., C:\Program Files (x86)\Steam ). Step 6: Crucial Step: Verify game files. Go to Steam Library > Right-click DmC > Properties > Local Files > Verify integrity of game files. This will re-download any DLLs your AV deleted.
If you are running the game on a modern OS, the "Steam must be running" error might actually be a crash-at-launch issue masked by an incorrect error message.
Find the DMC-DevilMayCry.exe file, right-click it, go to > Compatibility , and check Run this program as an administrator . 2. Verify Game Integrity Corrupted or missing files can trigger false launch errors. Right-click DmC: Devil May Cry in your Steam Library. Select Properties > Installed Files (or Local Files). , try the following steps in order, as
: Fully exit Steam, then right-click your Steam shortcut and select Run as administrator .
Before diving into the fixes, it's helpful to understand why this error occurs. When you launch DmC , the game's executable checks for the presence and proper functioning of the Steam client. This is a core part of its Digital Rights Management (DRM). The error message appears when this check fails, even if Steam is running. Common culprits include:
Progress? No. Just a different flavor of failure.
Click and wait for the process to complete. 2. Check Antivirus Quarantines