How to Fix Mistfall Hunter Fatal Error on PC Steam: Full Troubleshooting Guide

If you’ve been waiting to dive into Mistfall Hunter, only to be greeted by a frustrating UE-MistfallHunter Fatal Error or an unexpected crash, you’re definitely not alone. I’ve spent enough time playing PC games to know that nothing kills the excitement faster than a game refusing to launch after you’ve been looking forward to it for weeks.

The good news is that this problem isn’t random. After digging through player discussions, testing different fixes, and comparing reports from the community, it became pretty clear that several solutions consistently solve the issue. Some of them take less than a minute, while others require a little more patience. Either way, it’s worth trying them before giving up on the game.

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Why Does Mistfall Hunter Keep Crashing?

Unlike many Unreal Engine games that crash because of outdated graphics drivers, Mistfall Hunter seems to run into conflicts with several Windows security features, graphics settings, and low-level software running in the background.

From what I’ve seen, the crash usually happens in one of these situations:

• The game closes immediately after launching.
• A Fatal Error message appears before reaching the main menu.
• The screen turns black and the application exits.
• The game crashes after accepting the developer agreement.
• Random crashes occur during long dungeon runs.

The exact cause depends on your hardware and software configuration, but the fixes below cover the majority of reported cases.

1. Disable Mandatory ASLR (The Fix That Works for Many Players)

If I had to recommend only one solution to try first, this would be it.

Many players have reported that Windows’ Mandatory ASLR security feature conflicts with the game’s memory allocation during startup. Once disabled, the game launches normally without throwing the Unreal Engine crash window.

Open Windows Security, navigate to App & Browser Control, then open Exploit Protection Settings. Under the system settings, locate Force Randomization for Images (Mandatory ASLR) and switch it to Off by default. After applying the change, restart your PC before launching the game again.

This sounds like a technical tweak, but it has solved the problem for a surprisingly large number of players.

2. Disable Intel AI Boost or Neural Processor

This one surprised me.

Newer Intel processors include AI acceleration hardware that works perfectly in most situations, but several players discovered that it can interfere with Mistfall Hunter’s startup process.

Open Device Manager, expand the Neural Processor category, and temporarily disable Intel AI Boost (or a similarly named device). After that, launch the game again.

If everything works, you can simply enable it again whenever you’re finished playing.

3. Adjust NVIDIA Graphics Settings

Modern NVIDIA drivers include plenty of advanced features that generally improve performance, but sometimes they do exactly the opposite for newly released games.

I recommend checking these settings:

• Disable Smooth Motion if it’s enabled.
• Test both enabling and disabling Hardware Accelerated GPU Scheduling (HAGS).
• Set Mistfall Hunter to High Performance under Windows Graphics Settings.
• Restart your PC after making changes.

It sounds basic, but graphics scheduling often affects Unreal Engine shader compilation during first launch.

4. Disable Every Overlay You Can

If you’re like me, you probably have Discord, Steam Overlay, MSI Afterburner, OBS, and maybe GeForce Experience running all at once.

Unfortunately, Mistfall Hunter’s anti-cheat doesn’t always appreciate that.

I’d recommend temporarily disabling:

• Discord Overlay
• Steam Overlay
• MSI Afterburner
• RivaTuner Statistics Server
• GeForce Experience Overlay
• OBS Game Capture Hooks

After disabling them, launch the game again before turning everything back on one by one.

This approach makes it much easier to identify which program is causing the conflict.

5. Verify the Game Files

This is one of those fixes people often skip because it sounds too simple.

Don’t.

Steam’s verification tool has saved me countless reinstallations over the years. A single damaged file can easily trigger Unreal Engine crashes.

To verify the installation:

1. Open your Steam Library.
2. Right-click Mistfall Hunter.
3. Choose Properties.
4. Open Installed Files.
5. Select Verify Integrity of Game Files.

Steam will automatically replace any corrupted files without deleting your save data.

6. Repair Microsoft Visual C++ Redistributables

Many Unreal Engine games depend heavily on Microsoft’s Visual C++ runtime packages.

If those files become corrupted—or were never installed correctly—the game may crash before it even reaches the menu.

Download the latest Visual C++ Redistributables for both x64 and x86, run the installer, choose Repair, and restart Windows afterward.

It’s a quick process that fixes far more issues than many people realize.

7. Launch Steam as Administrator

Permission issues are another surprisingly common cause.

Windows sometimes prevents games from communicating properly with Steam services, especially after recent updates.

Try this simple approach:

• Close Steam completely.
• Right-click the Steam shortcut.
• Select Run as Administrator.
• Launch Mistfall Hunter again.

If the crash disappears, you’ve likely found the culprit.

8. Try DirectX 11 Instead of DirectX 12

While DirectX 12 generally offers better performance, it’s also less forgiving when new games launch with driver compatibility issues.

You can force Mistfall Hunter to use DirectX 11 by opening the game’s Launch Options in Steam and entering:

-dx11

If the game starts successfully, you’ve confirmed that the issue is likely related to DirectX 12 compatibility.

Another useful startup parameter is:

-windowed

This can bypass certain fullscreen initialization crashes during launch.

9. Install the Game on a Faster SSD

I know reinstalling a game isn’t anyone’s favorite solution, but sometimes it’s the cleanest one.

If you’re still using an older SATA drive—or if the game has been updated multiple times since installation—it may be worth performing a fresh install.

Here’s what I’d do:

1. Uninstall the game completely.
2. Restart Windows.
3. Install it on an NVMe SSD if possible.
4. Avoid copying old configuration files into the new installation.

I’ve personally fixed several stubborn PC game issues this way over the years, especially with Unreal Engine titles.

Additional Tips That Are Worth Trying

If none of the major fixes solve the problem, there are still a few smaller tweaks that have helped individual players.

Some ideas include:

• Update your graphics driver.
• Install the latest Windows updates.
• Close unnecessary background applications.
• Disable RGB controller software temporarily.
• Remove GPU overclocks.
• Revert CPU undervolting.
• Delete the game’s shader cache.
• Restart Steam after every major change.

These aren’t guaranteed solutions, but together they eliminate many common sources of instability.

Final Thoughts

As someone who spends way too many evenings exploring RPGs and extraction games, I know how annoying launch-day technical problems can be. Mistfall Hunter has an incredibly fun gameplay loop once everything is working properly, so it’s frustrating when a Fatal Error gets in the way before the adventure even begins.

Fortunately, most crashes don’t seem to be caused by broken hardware or permanently damaged game files. In my experience, they’re usually the result of Windows security features, graphics driver settings, or software running quietly in the background. Working through the fixes one at a time is much more effective than changing everything at once, since you’ll actually know which adjustment solved the problem.

Hopefully one of these solutions gets you back into the dungeons without another crash. And if a future update removes these issues entirely, that’s something every PC player can appreciate.