How to Fix UE4 Low level Fatal Error Game Crash when Startup

The Low Level Fatal error UE4 (Unreal Engine 4) Game has crashed and will close is a common error that occurs when the Unreal Engine 4, which is the game engine used by game, fails to communicate with the DirectX device or the graphics driver. This can cause the game to exit unexpectedly and display the error message.

There are several possible solutions to fix this error, depending on the cause and your system configuration. Here are some of them, along with detailed step-by-step explanations:

Fix 1: Delete the DBFighterZ folder

This folder contains some temporary files that may be corrupted or incompatible with the game. Deleting this folder can help the game run smoothly. To do this, follow these steps:

1. Press Windows + R to open the Run dialog box.
2. Type %localappdata% and press Enter to open the Local folder in the AppData Directory.
3. Locate the DBFighterZ folder and select it, then press the Delete icon.
4. Restart the game to check if the issue persists.

Fix 2: Modify a registry entry

This entry controls the timeout detection and recovery (TDR) feature of the graphics driver, which determines how long the system waits before resetting the graphics device when it stops responding. Increasing the TDR delay and level can prevent the game from crashing due to the device being lost. To do this, follow these steps:

1. Press Windows + R to open the Run dialog box.
2. Type regedit and click OK to open the Registry Editor.
3. First, create a backup of the registry entries. For that, go to File, then select Export. Save the .reg file in the accessible location.
4. Navigate to this path: Computer\HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control
5. Select the GraphicsDrivers folder, right-click the empty space, then select New, followed by DWORD (32-bit) and name it TdrDdiDelay.
6. Double-click TdrDdiDelay, set the Value data to 30 and select Base as Decimal. Click OK to confirm.
7. Next, add another DWORD, name it TdrLevel. Double-click it and set the Value data to 3, then choose Base as Decimal and click OK.
8. Reboot your computer and run the game to check if the issue persists.

Fix 3: Edit the hosts file

This file contains mappings of IP addresses to hostnames, which can affect the network connectivity of the game. Adding a specific line to the hosts file can block the game from accessing a certain server that may cause the crash. To do this, follow these steps:

1. Press the Windows key, type cmd in the search box and click Run as administrator.
2. Copy & paste the following command and press Enter: notepad %windir%\system32\drivers\etc\hosts
3. Once the hosts file is open, add this line at the end of the document – 0.0.0.0 datarouter.ol.epicgames.com datarouter-weighted.ol.epicgames.com
4. Press Ctrl + S to save the file, close Notepad and close the CMD window as well.
5. Now, try running the game.

Fix 4: Update/reinstall the graphics driver

The graphics driver is responsible for communicating with the graphics device and rendering the game graphics. If the driver is outdated, corrupted, or incompatible, it can cause the game to crash. Updating or reinstalling the graphics driver can fix this problem. To do this, follow these steps:

1. Press Windows + R to open the Run window.
2. Type devmgmt.msc and click OK to open the Device Manager app.
3. Locate and click Display adapters to expand the category.
4. Right-click the graphics driver and choose Update driver.
5. Select Search automatically for updated driver software and follow the on-screen instructions to complete the update.
6. If the update does not work, right-click the graphics driver again and choose Uninstall device.
7. Restart your computer and Windows will automatically reinstall the driver.

I hope this helps you resolve the Fatal error: The UE4 Game has crashed and will close. If you have any other questions, feel free to ask me.