Fix: Mortal Kombat 1 Multiplayer Not Working

Fix: Mortal Kombat 1 Multiplayer Not Working: Are you ready to unleash your inner warrior and engage in epic battles with friends? Mortal Kombat 1 offers an exhilarating multiplayer experience that allows players to go head-to-head, testing their combat skills and proving who is truly the ultimate fighter. However, it can be frustrating when the multiplayer mode isn’t working as expected. But fear not! In this blog post, we will explore some common reasons why Mortal Kombat 1’s multiplayer might not be functioning properly and provide you with effective solutions to get back into the action-packed world of virtual combat. So grab your controllers, tighten those gloves, and let’s dive into fixing Mortal Kombat 1’s multiplayer woes together!

Why Mortal Kombat 1 Multiplayer Not Working?

Why Mortal Kombat 1 Multiplayer Not Working?
Why Mortal Kombat 1 Multiplayer Not Working?

The thrill of playing Mortal Kombat 1 with friends is unmatched, but when the multiplayer mode fails to work, it can put a damper on your gaming experience. There are several potential reasons why you might be encountering issues with the multiplayer functionality.

  • Excessive Background Services:
    • Running many applications simultaneously can lead to decreased game performance and lags.
  • Game Integrity:
    • An outdated, corrupted, or missing game file can prevent MK1 from launching or cause significant frame rate drops.

How To Fix Mortal Kombat 1 Multiplayer Not Working

Fix Mortal Kombat 1 Multiplayer Not Working
Fix Mortal Kombat 1 Multiplayer Not Working

Are you a fan of Mortal Kombat 1 but facing issues with the multiplayer mode? Don’t worry, we’ve got you covered! In this blog section, we will discuss some effective fixes to get your Mortal Kombat 1 multiplayer up and running smoothly.

Fix 1: Update the Display Driver

One common reason why Mortal Kombat 1 multiplayer may not be working is an outdated display driver. Your display driver plays a crucial role in ensuring that your game runs smoothly and without any issues. If you haven’t updated your display driver in a while, it’s possible that it may be causing conflicts with the game.

To update your GPU driver to potentially resolve multiplayer issues, follow these steps:

  1. Open Device Manager:
    • Press Win + X on your keyboard.
    • From the menu that appears, select “Device Manager.”
  2. Expand Display Adapters:
    • In Device Manager, expand the “Display adapters” category to view your GPU driver.
  3. Update the GPU Driver:
    • Right-click on your GPU driver listed under “Display adapters.”
    • Select “Update driver” from the context menu.
  4. Search Automatically for Drivers:
    • Choose the option to “Search automatically for updated driver software.”
    • Windows will search for the latest driver updates online and install them if available.
  5. Reboot Your PC:
    • After the driver update is complete, restart your PC to apply the changes.

Updating your GPU driver ensures that your graphics hardware is running with the latest improvements and optimizations, which can help address multiplayer issues and enhance overall gaming performance in Mortal Kombat 1.

Remember, updating your display driver is just one potential solution for fixing Mortal Kombat 1 multiplayer issues. If this fix doesn’t work for you or if you encounter any other problems along the way, there are several other troubleshooting steps you can try as well!

Fix 2: Run the Launcher as an Administrator

One common reason why Mortal Kombat 1 multiplayer might not be working is due to insufficient permissions. Sometimes, running the game’s launcher as an administrator can fix this issue.

  1. Find the Launcher Shortcut:
    • Locate the shortcut for the Steam or Epic Games Launcher executable on your desktop or in your Start menu.
  2. Right-Click the Shortcut:
    • Right-click on the Steam or Epic Games Launcher shortcut.
  3. Access Properties:
    • From the context menu, select “Properties.”
  4. Compatibility Settings:
    • In the Properties window, go to the “Compatibility” tab.
  5. Run as Administrator:
    • Check the box that says “Run this program as an administrator.”
  6. Apply Changes:
    • Click the “Apply” button to save the changes.
  7. Confirm and Relaunch:
    • Click “OK” to close the Properties window.
    • Relaunch the Steam or Epic Games Launcher.

Running the launcher as an administrator can help ensure that it has the necessary permissions to access and update game files, potentially resolving issues and improving the overall gaming experience.

Fix 3: End Background Processes

One common issue that can prevent the multiplayer mode in Mortal Kombat 1 from working is background processes interfering with the game. These processes could be using up valuable system resources, causing conflicts and preventing the game from running smoothly. So, how do you fix this problem? By ending unnecessary background processes!

  1. Open Task Manager:
    • Press Ctrl + Shift + Esc on your keyboard. Alternatively, you can press Ctrl + Alt + Delete and select “Task Manager.”
  2. Navigate to the Processes Tab:
    • In Task Manager, go to the “Processes” tab.
  3. End Unnecessary Tasks:
    • Carefully review the list of running processes.
    • Right-click on processes that are not essential for your gaming session (e.g., non-essential applications, background tasks) and select “End Task” for each one.
    • Exercise caution not to end any critical system processes.
  4. Reboot Your Computer:
    • After ending unnecessary tasks, it’s a good practice to reboot your computer to ensure optimal results.

By closing non-essential background processes, you can free up system resources and potentially improve game performance, including reducing frame rate drops and enhancing the overall gaming experience.

Fix 4: Disable Steam Overlay

If you’re experiencing issues with the multiplayer functionality in Mortal Kombat 1, one possible solution is to disable the Steam Overlay. The Steam Overlay is a feature that allows players to access various features while playing games, such as chat and web browsing. However, it can sometimes interfere with certain games and cause compatibility problems.

  1. Open Steam Library:
    • Launch the Steam client on your computer.
  2. Access Game Properties:
    • In your Steam Library, locate “Mortal Kombat 1.”
    • Right-click on “Mortal Kombat 1” to open a context menu.
  3. Navigate to Properties:
    • From the context menu, select “Properties.”
  4. Disable Steam Overlay:
    • In the Properties window for Mortal Kombat 1, go to the “General” tab.
  5. Deactivate Steam Overlay:
    • Uncheck the box that says “Enable the Steam Overlay while in-game.”
  6. Apply Changes and Relaunch:
    • Click the “Close” or “OK” button to apply the changes.
    • Relaunch Mortal Kombat 1.

Disabling the Steam Overlay can help improve performance, particularly if it was causing any conflicts or issues during gameplay. It may result in a smoother gaming experience in Mortal Kombat 1.

Fix 5: Run the Game in Windowed Mode

If you’re experiencing issues with Mortal Kombat 1 multiplayer not working, running the game in windowed mode can be a potential solution. Windowed mode allows the game to run within a smaller window on your desktop instead of taking up the entire screen.

  1. Open File Explorer:
    • Press the Windows key on your keyboard to open the Start menu.
    • Type %LOCALAPPDATA% and press Enter. This will open File Explorer and take you to the specified directory.
  2. Navigate to GameUserSettings:
    • In the File Explorer window, go to the following path:
      Prospect > Saved > Config > WindowsNoEditor
  3. Modify Fullscreen Settings:
    • Look for a file named ‘GameUserSettings’ within the ‘WindowsNoEditor’ folder.
    • Right-click on ‘GameUserSettings’ and choose to open it with a text editor (e.g., Notepad).
  4. Change FullscreenMode:
    • In the ‘GameUserSettings’ file, find the line that reads:
    • Modify it to:
  5. Save the File:
    • Save the changes you made to the ‘GameUserSettings’ file.
  6. Relaunch Mortal Kombat 1:
    • Close any running instances of Mortal Kombat 1 if applicable.
    • Relaunch Mortal Kombat 1 to apply the new fullscreen settings.

Changing the fullscreen mode to “0” (borderless windowed) may help improve the game’s performance and compatibility with your system. Test the game to see if you notice any differences in performance or stability.

Fix 6: Turn Off Antivirus Protection

Another possible solution to fix the Mortal Kombat 1 multiplayer not working issue is by turning off your antivirus protection. While antivirus software is essential for protecting your computer from malicious threats, sometimes it can interfere with certain games or applications.

Disabling Windows Defender Real-Time Protection:

  1. Open Windows Security:
    • Press Windows + I on your keyboard to open the Settings menu.
    • Select “Update & Security.”
    • Choose “Windows Security” from the left sidebar.
  2. Access Virus & Threat Protection Settings:
    • Under Windows Security, click on “Virus & Threat Protection.”
  3. Manage Settings:
    • Click on “Manage settings” under the “Virus & Threat Protection settings” section.
  4. Toggle Off Real-Time Protection:
    • Toggle off the switch next to “Real-time protection.”

    Note: Remember to turn this feature back on after you’ve finished playing Mortal Kombat 1 for security reasons.

Whitelisting Mortal Kombat 1 (if using third-party antivirus):

  1. Access Game Files:
    • Open Steam and go to your Library.
  2. Locate Mortal Kombat 1:
    • Find “Mortal Kombat 1” in your library.
  3. Open Game Folder:
    • Right-click on Mortal Kombat 1 and select “Properties.”
  4. Navigate to Game Files:
    • In the Properties window, go to the “Local Files” tab.
  5. Browse Local Files:
    • Click the “Browse Local Files” button. This will open File Explorer in the game’s directory.
  6. Access Win64 Folder:
    • Navigate to the following path within the game directory:
      Prospect > Binaries > Win64
  7. Whitelist ‘Prospect-Win64-Shipping’:
    • In the Win64 folder, locate the ‘Prospect-Win64-Shipping’ executable file.
    • Depending on your third-party antivirus software, you may need to add this file to the whitelist or exceptions list. Consult your antivirus documentation for specific instructions on how to whitelist or exclude files.

By disabling real-time protection and whitelisting the game’s executable, you can potentially resolve any interference from antivirus software that may be affecting Mortal Kombat 1’s performance or launching. Remember to re-enable real-time protection after your gaming session for continued security.

Fix 7: Update Mortal Kombat 1

If you’re experiencing issues with the multiplayer functionality in Mortal Kombat 1, it’s possible that updating the game might just do the trick. Game developers often release updates and patches to address bugs and improve overall performance, so keeping your game up-to-date is essential.

For Steam:

  1. Open Steam:
    • Launch the Steam client on your computer.
  2. Access Library:
    • In the Steam client, navigate to your “Library.”
  3. Check for Updates:
    • Locate “Mortal Kombat 1” in your library.
  4. Update the Game:
    • If an update is available, you will see an option to update the game. Click on “Update” to start the update process.
  5. Restart Your PC:
    • After the update is complete, it’s a good practice to restart your PC for the changes to take effect.

For Epic Games Launcher:

  1. Access the Library:
    • Open the Epic Games Launcher on your computer.
  2. Locate Mortal Kombat 1:
    • In the Epic Games Launcher, navigate to your “Library.”
  3. Check Auto Update Setting:
    • Find Mortal Kombat 1 in your library and click on its three dots (usually found in the bottom-right corner of the game’s tile).
  4. Ensure Auto Update is On:
    • Ensure that the “Auto Update” option is toggled on. This setting should automatically keep the game updated.

By keeping Mortal Kombat 1 up to date through these platforms, you ensure that you have the latest patches and fixes, which can help resolve issues and enhance the overall gaming experience.


Fix 8: Contact Support

If none of the previous fixes have resolved the issue with Mortal Kombat 1 multiplayer not working, it may be time to reach out for assistance. The game’s developers or support team should be able to provide further guidance and troubleshoot any underlying issues.

When contacting support, be sure to provide as much information as possible about the problem you’re experiencing. Include details such as your operating system, hardware specifications, and any error messages you’ve encountered. This will help them better understand the issue and come up with a solution.

You can typically contact support through various channels such as email, live chat, or phone. Check the game’s official website for specific instructions on how to get in touch with their support team.

Remember that response times may vary depending on the developer’s workload and resources. Be patient while waiting for a reply and follow any instructions they provide.

By reaching out to support, you increase your chances of finding a resolution to the multiplayer issues in Mortal Kombat 1. Don’t hesitate to seek their assistance if all else fails!

Stay tuned for more tips on troubleshooting common gaming problems!


Experiencing issues with the multiplayer function in Mortal Kombat 1 can be frustrating, but there are several potential fixes that you can try. From updating your display driver to running the launcher as an administrator, disabling background processes or the Steam Overlay, and even running the game in windowed mode – these steps may help resolve any problems you encounter.

Additionally, turning off antivirus protection and ensuring that your game is up to date are crucial steps in troubleshooting. And if all else fails, don’t hesitate to reach out to support for further assistance.

Remember that technology can sometimes be unpredictable, and it’s not uncommon for technical difficulties to arise. However, by following these suggested fixes and remaining patient throughout the process of finding a solution, you’ll increase your chances of getting back into action-packed multiplayer battles in Mortal Kombat 1.

Now it’s time for you to apply these fixes and get ready to unleash those fatalities with your friends! Good luck!

Note: This blog post is intended as a general guide only. Results may vary depending on individual circumstances.

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