Little Nightmares III Error: The UE4-SMG031MP Game Has Crashed and Will Close LowLevelFatalError

Many gamers face sudden crashes while playing their favorite horror adventure games. When the screen goes black and progress is lost, the frustration quickly builds up. One repeating issue is Little Nightmares III Error: The UE4-SMG031MP Game Has Crashed and Will Close LowLevelFatalError.

This error usually appears during gameplay or even just after launching the title. It prevents players from exploring its dark world and makes every attempt uncertain. This issue can be resolved in the shortest time possible with a couple of solutions. Thus, the guide below tells how to get back to regular gaming without any trouble.

Part 1. Why Little Nightmares III Error: The UE4-SMG031MP Game Has Crashed and Will Close LowLevelFatalError Happens

Sometimes this crash happens suddenly after launching or during scenes with heavy animations. Knowing the causes from the points helps identify which setting triggers this problem:

• Outdated Drivers: Old GPU or audio drivers fail to handle the game’s rendering system. Their incompatibility directly causes Little Nightmares III Error: The UE4-SMG031MP Game Has Crashed and Will Close LowLevelFatalError.
• Corrupt Files: Broken installation files can stop the engine from loading textures. Such corruption leads to faulty execution that crashes the program seconds after startup.
• Graphics Settings: High visuals push the GPU beyond safe rendering capacity during sessions. This overload triggers abnormal memory use that results in repetitive fatal crashes.
• Software Conflicts: Multiple background apps modify running data that the game reads. Their interference blocks needed memory access, forcing immediate crash and shutdown behavior.
• Missing Libraries: If system libraries like DirectX redistribute packages are absent, code fails. The missing modules leave functions incomplete, causing frequent application crashes.

Part 2. How to Fix Little Nightmares III Error: The UE4-SMG031MP Game Has Crashed and Will Close LowLevelFatalError

Fixing this game error is easier once the real cause is understood correctly. So, the following sections cover the top 8 fixes to help the game run smoothly again without mistakes:

Method 1: Modify Game Launch Options

Changing launch options can help the game start with safer settings always. This method reduces pressure on hardware and avoids sudden performance issues easily. It can bypass errors that stop loading and cause unwanted crashing moments repeatedly. Players facing Little Nightmares III Error: The UE4-SMG031MP Game Has Crashed and Will Close LowLevelFatalError may see quick improvement. Follow the given steps to find out how you can modify your game launch option:

Step 1. To initiate, run the game launcher and navigate to the “Library” section. Subsequently, right-click the “Little Nightmares III” game and go to the “Properties” option.

Step 2. Upon accessing the “General” tab, modify the game launch options by typing “-dx11.” Go ahead and restart your computer to resolve this issue.

Method 2: Disable Ray Tracing

You can also turn off ray tracing to reduce stress on the GPU during high rendering scenes. It creates advanced lighting effects that demand many system resources constantly. Weaker hardware may struggle to run these visuals smoothly and cause sudden crashes. Upon disabling it, players gain playtime and fewer crashes without losing visual detail. Go through the given guide to disable ray tracing on your computer:

Step 1. When you access the game’s menu, head to the “Settings” section.

Step 2. Following that, click the “Video” settings to move further.

Step 3. Upon seeing the upcoming options, scroll down and choose the “Advanced” option.

Step 4. Afterward, set the “Ray Tracing” feature to “Off” and restart your game.

Method 3: Play in Windowed Mode

Playing in windowed mode can reduce display conflicts that cause sudden crashes. This mode uses fewer system resources and keeps the game running smoothly. It helps when full-screen settings create errors or interrupt loading during play. This can prevent Little Nightmares III Error: The UE4-SMG031MP Game Has Crashed and Will Close LowLevelFatalError from appearing. Thus, take guidance from the steps below to play your game in windowed mode:

Step 1. Navigate to the “Library” tab from the “Steam” app and right-click the game to select “Properties.”

Step 2. Subsequently, access the “General” tab and enter “-windowed” in the “Launch Options” section. Later, you need to relaunch the game to play it in Windowed mode.

Method 4: Restore 3D Settings in NVIDIA Control Panel

It is also recommended to restore 3D settings to fix wrong graphics configurations easily. Sometimes custom options create problems and cause the game to crash quickly. Resetting everything returns safe defaults and improves system stability during gameplay moments. It also helps the GPU handle effects correctly without extra pressure on performance. Hence, review the following guide to restore 3D settings effortlessly:

Step 1. Opt for the “Manage 3D Settings” section from the "NVIDIA Control Panel" and press the “Restore” button.

Step 2. As you see a prompt screen, hit the “Yes” button.

Step 3. Moving ahead, click the “Apply” button and restart your pc to apply the changes.

Method 5: Rename or Delete Config/Cache Folders

Many times, the config and cache folders store settings and temporary data for smoother gameplay. However, old or damaged files inside these folders may cause sudden crashes. Renaming or deleting them forces the game to rebuild fresh working data fast. It can stop Little Nightmares III Error: The UE4-SMG031MP Game Has Crashed and Will Close LowLevelFatalError. Anyhow, to either rename or delete the cache folder, follow the given steps:

Instruction. Launch the “File Explorer” and go to “C:\Users\<YourUsername>\AppData\Local\LittleNightmaresIII\Saved\.” Subsequently, right-click the “Config” and choose the “Delete” option.

Method 6: Check Visual C++ Redistributables

This program helps games run important features effortlessly on Windows systems. In case these components are missing, the game may crash or fail to load completely. You should either check or install them to restore the required parts. Moreover, it is quick to perform and does not require expert knowledge at all. So, adhere to the instructions given below to check this program and its version on your computer:

Instruction. To initiate, navigate to your system settings and head to the “Apps” tab. Go ahead and access the “Installed Apps” section to check your “Visual C++ Redistributables” version.

Method 7: Perform a Clean Boot and Restart PC

A clean boot stops extra programs from running and disturbing your game performance. This method helps find software conflicts that may cause sudden crash issues at any time. Restarting the PC refreshes system memory and clears temporary problems slowing gameplay. It can reduce Little Nightmares III Error: The UE4-SMG031MP Game Has Crashed and Will Close LowLevelFatalError. Hence, go through the steps below to perform a clean boot on your desktop:

Step 1. Press the “Windows + R” keys together to access the “Run” dialogue box. Enter the “misconfig” command and hit the “OK” button.

Step 2. Going ahead, click the “Services” tab and tick the “Hide All Microsoft Services” box. Upon doing this, press the “Disable All” button and then hit “OK” to finish the task.

Step 3. Afterward, click the “Start” menu to press the “Power” icon and choose the “Restart” option.

Method 8: Fix Corrupt or Damaged Little Nightmares III Files

When game files are corrupted, the system cannot load essential data correctly anymore. This leads to sudden crashes and slow loading issues that ruin your experience. Little Nightmares III Error: The UE4-SMG031MP Game Has Crashed and Will Close LowLevelFatalError appears when files fail. To fix this, Repairit is the best tool that restores damaged files without losing content.

It offers accurate detection for every issue and delivers productive outcomes very fast. Plus, Repairit supports repairing files in batches when many assets are damaged together. Users can also preview repaired data before saving to ensure everything looks correct. It maintains full compatibility across devices and supports both Windows and macOS platforms. Flexible access allows offline repair software or online repair from any safe location.

Guide to Fix Corrupt or Damaged Little Nightmares III Files via Repairit

Go through the guide below to repair your damaged game files without hassle:

Step 1. Select the Document Repair Tool

As you access the “More Types Repair” tab, choose “Document Repair” by pressing the “Start” button.

Step 2. Start Fixing the Damaged Game Files

On the upcoming screen, press the “+Add” button to import damaged game files and then hit the “Repair” button.

Step 3. Save the Repaired Game Files

When the game files are repaired, press the “Save All” and then “Save” button to export the files.

Part 3. How to Fix Damaged or Corrupted Game Video Files

Gamers may also notice their downloaded videos get damaged, leaving recorded gameplay unplayable. Many players face this when Little Nightmares III Error: The UE4-SMG031MP Game Has Crashed and Will Close LowLevelFatalError appears and corrupts video assets. In such cases, Repairit Game Video Repair offers strong Video Repair features for fixing videos. It handles corrupted game footage using advanced AI technology for precise restoration.

Plus, this robust video repair tool works across 25+ video formats, including AVI and MKV. While repairing, it eliminates playback errors that stop the player from opening files properly. The program also repairs delays where audio plays earlier or later than the visuals. Plus, Repairit achieves up to 99.5 percent fix rate, delivering trusted worldwide results.

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• Repair damaged videos with all levels of corruption, such as video not playing, video no sound, out-of-sync video or audio, playback errors, header corruption, flickering video, missing video codec, etc.

• Repair full HD, 4K, and 8K videos and support 20+ popular formats, including MOV, MP4, M2TS, MDT, RSV, WMV, MPEG, DAT, etc.

• Repair damaged or corrupted videos caused by video compression, system crashes, video format changes, etc.

• Repair critically damaged or corrupted RAW/LOG/HDR videos from professional cameras such as Blackmagic Design, RED Digital, ARRI, etc.

• Repairit has a quick and advanced scanning mode. You can use either depending on the level of corruption the video file has undergone.

• No limit to the number and size of the repairable videos.

• Repaired videos are more compatible with professional editing software such as DaVinci, Composer, Final Cut Pro, and Premiere Pro.

• Support Windows 11/10/8/7/Vista, Windows Server 2003/2008/2012/2016/2019/2022, and macOS 10.12~macOS 15.

Detailed Guide to Fix Damaged or Corrupted Game Video Files Using Repairit

You can adhere to the given guide to repair your corrupted game video files:

Step 1. Access the Video Repair Tool

Initiate by accessing the “Video Repair” tab and pressing the “Start” button to import your corrupted game videos.

Step 2. Start Repairing Your Damaged Game Videos

Upon importing, press the “Repair” button and let the tool initiate the process.

Step 3. Export Your Repaired Game Video Files

As the process is completed, preview the repaired game video and press both the “Save All” and “Save” buttons.

Conclusion

In summary, fixing game crashes requires patience and the correct set of fixes. With each solution above, you can restore smoother graphics and better performance easily. Still, if Little Nightmares III Error: The UE4-SMG031MP Game Has Crashed and Will Close LowLevelFatalError continues to appear, file damage may exist. In that case, using Repairit becomes essential to restore corrupted game files effortlessly.