For a GameMaker game, inserting missing DLLs can cause a crash because you may be using an incorrect version or the game has more complex dependency issues. The DLLs from random internet sources are also a common cause of malware and system instability.
Why simply adding a DLL can fail
- Dependency chains: Many DLLs rely on other DLLs. Adding one missing file won't work if it, in turn, needs another file that is also missing. If you don't install the correct chain of dependencies, the program will crash on launch.
- Version mismatch: A DLL file must be the correct version and architecture (32-bit or 64-bit) for the game and your operating system. An incompatible file will cause the game to fail immediately.
- Malware risk: DLL download sites are notoriously unreliable and often distribute corrupted files or malicious software. The files you downloaded might be the reason for the crash.
- Incorrect location: Dropping a DLL into the wrong folder will not solve the issue. The game's executable needs the file to be in a specific location, often the same directory as the executable itself or a system folder.
- Corrupted file: The missing DLL could be a symptom of a larger problem, like a corrupted system file, and simply inserting a new one won't fix it.
How to correctly resolve missing DLLs
Do not try to find and insert individual DLLs. Instead, use these safer and more effective methods.
1. Run the official redistributable installers
The most common missing DLLs (like VCRUNTIME140.dll) are part of the Microsoft Visual C++ Redistributable package. A GameMaker game will typically require a specific version of this package.
2. Reinstall the game
If you have a legitimate copy from a service like Steam, GOG, or itch.io, simply reinstalling it will likely resolve the issue. The installer is programmed to place all necessary DLLs in the correct locations.
- On Steam: Right-click the game, go to Properties > Local Files, and select Verify integrity of game files....
3. Run System File Checker (SFC)
If the issue is with a core Windows system file, you can run a scan to detect and replace it.
- Open the Command Prompt as an administrator by right-clicking the Start menu and selecting Terminal (Admin) or Command Prompt (Admin).
- Type sfc /scannow and press Enter. This will scan and repair corrupted system files.
4. Check for antivirus interference
Some antivirus software can mistakenly flag and quarantine legitimate DLL files, causing them to go "missing."
- Temporarily disable your antivirus software and try running the game.
- If the game launches, create an exclusion for the game's folder in your antivirus settings, then re-enable the software.
5. Check for further dependencies (Advanced)
If the problem persists, the game may require a non-standard DLL.
- Look for a crash log file, which may reveal the specific file or process that caused the crash.
- Use a tool like Dependency Walker to analyze the game's executable and see all the DLLs it requires. This can help you identify missing custom DLLs.
