Mistfall Hunter Fatal Error Fix
Mistfall Hunter players have reported a crash with the message “Fatal Error” or “UE-MistfallHunter Game Has Crashed and Will Close” at three points: the moment you press Play, during the Unreal Engine startup screen, or mid-raid. Bellring Games has confirmed the problem and pointed to a small set of system-level conflicts behind it.
Quick answer: most affected PCs recover after a single Windows Security change — set Force randomization for images (Mandatory ASLR) to Off by default in Exploit protection, restart your PC, and relaunch. The remaining cases fall to a short list of driver and overlay fixes below.
What Triggers the Fatal Error
This is almost never failing hardware. The crash comes from conflicts between the game’s Unreal Engine 5 build and specific Windows settings, driver features, or background software. Which fix you reach for first depends on when it crashes:
| When it crashes | Most likely cause | Try |
|---|---|---|
| Instantly on pressing Play | Mandatory ASLR (Windows Security) | Disable Mandatory ASLR |
| Black screen, then crash | NVIDIA Smart Access Memory / shader cache | Disable ReBAR/SAM, clear shader cache |
| During the startup screen | Outdated GPU driver | Update the GPU driver |
| Mid-raid, after a few minutes | Overlay conflicts (Discord, GeForce Experience) | Close overlays |
| “0xc0000005” / unable to start correctly | Antivirus or DEP interaction | Verify files, add exclusion |
The Main Fix: Turn Off Mandatory ASLR
The fix that clears the launch crash for most players, per troubleshooting guides:
- Open Windows Security.
- Go to App & browser control → Exploit protection settings.
- Find Force randomization for images (Mandatory ASLR).
- Set it to Off by default.
- Click Apply, then restart your PC.
- Relaunch the game through Steam.
Mandatory ASLR is a Windows hardening feature that some Unreal Engine 5 builds conflict with. Turning it off for the system default does not meaningfully weaken security for most users, and it resolves the launch crash for a large share of affected players.
Backup Fixes
If the ASLR toggle alone does not clear it, work through these in order:
- Update your GPU driver. The crash during the Unreal startup screen is frequently a driver issue — install the latest driver from NVIDIA or AMD (or your laptop vendor) and do a clean install.
- Disable hardware-accelerated GPU scheduling / ReBAR or Smart Access Memory. Some coverage points to resizable BAR conflicts on certain setups; disable it in BIOS or in the NVIDIA Control Panel if the black-screen crash persists.
- Clear the shader cache. Delete the DirectX Shader Cache and the game’s own shader cache files, then relaunch once so it recompiles.
- Close overlays. Discord overlay, GeForce Experience in-game overlay, and MSI Afterburner can all trigger mid-raid crashes. Disable them and test.
- Verify game files. In Steam, right-click the game → Properties → Installed Files → Verify integrity of game files.
- Add an antivirus exclusion. Some players report antivirus intercepting the UE5 build at launch; exclude the game’s install folder and relaunch.
- Update Windows. Ensure the OS is current, since the fatal error has been linked to older Windows builds.
Developer Status
Bellring Games has acknowledged the crash and, per launch coverage, pointed to the system-level conflicts above rather than the game’s code. The July 30 stability hotfix and the announced next client patch (week of August 3–9, 2026) include further crash fixes — so update the game first before trying the manual fixes, in case the latest patch already resolves it.
Frequently Asked Questions
What does “UE-MistfallHunter Game Has Crashed” mean? The game’s Unreal Engine 5 process crashed. It is reported at launch, on the startup screen, or mid-raid, and is most often caused by a Windows security setting (Mandatory ASLR), a driver conflict, or an overlay.
Does the Mandatory ASLR fix actually work? Troubleshooting guides report it clears the launch crash for a large majority of affected players. It is the first fix to try.
Is this the same as the stuttering? No. Stuttering is a performance hitch; the fatal error is a full crash with a “UE-MistfallHunter Game Has Crashed and Will Close” message. See the Stuttering Fix for frame-rate issues.
Will a patch fix it? Bellring has shipped crash fixes in the launch patches and announced more for the next client update, so updating the game is always step one.
Sources
- All Things How: Mistfall Hunter Fatal Error — How to Fix the UE-MistfallHunter Crash
- TposeGaming: Mistfall Hunter Fatal Error Fix
- Sportskeeda: Mistfall Hunter crashing on PC error — possible fixes
- Steam Community: Working fix for the 0xc0000005 launch error
Related Guides
- Mistfall Hunter Stuttering Fix — performance hitches and FPS drops
- Mistfall Hunter System Requirements — whether your PC meets the bar
- Mistfall Hunter FOV Settings
- Mistfall Hunter Guides