Many players encounter the LowLevelFatalError while launching REANIMAL on PC. Usually, the error appears in an Unreal Engine crash window and forces the game to close instantly. Sometimes, it happens during startup, while loading shaders, or entering gameplay.
This error typically occurs due to GPU driver issues, DirectX conflicts, corrupted files, or Unreal Engine instability. Fortunately, the fixes below help resolve the problem for most users.
Why REANIMAL Shows LowLevelFatalError
Understanding the causes makes troubleshooting easier.
Common causes include:
- Outdated or broken graphics drivers
- Corrupted or missing game files
- DirectX 12 instability
- Missing Visual C++ Redistributables
- GPU overclock or undervolt instability
- Insufficient VRAM
- Antivirus blocking Unreal Engine files
- Damaged shader cache
Because Unreal Engine depends heavily on GPU communication, even small issues can trigger LowLevelFatalError.
Fix 1: Verify Game Files (Most Important)
Corrupted files are the most common cause.
Steps (Steam):
- Open Steam → Library
- Right-click REANIMAL
- Click Properties
- Go to Installed Files
- Click Verify integrity of game files
After verification, restart your PC and test the game.
Fix 2: Force DirectX 11 Launch (Highly Recommended)
DirectX 12 often causes LowLevelFatalError.
Steps:
- Open Steam Library
- Right-click REANIMAL
- Click Properties
- Add this to Launch Options:
-dx11
- Launch the game
DX11 is more stable for Unreal Engine games.
Fix 3: Update Graphics Drivers
Outdated GPU drivers frequently trigger this crash.
Update drivers from:
- NVIDIA GeForce Experience
- AMD Adrenalin Software
- Intel Driver Assistant
Restart your PC after updating.
Fix 4: Install Visual C++ Redistributables
Missing runtime components can crash Unreal Engine games.
Steps:
- Download Visual C++ 2015–2022 Redistributable
- Install:
- x64 version
- x86 version
Restart your PC.
Fix 5: Delete Shader Cache
Corrupted shaders can cause fatal errors.
Steps:
- Press Windows + R
- Type:
%localappdata%
- Open folder:
REANIMAL\Saved
- Delete:
ShaderCache
DerivedDataCache
Restart PC and launch game.
Fix 6: Disable GPU Overclock
Overclocking can cause Unreal Engine crashes.
Disable:
- MSI Afterburner overclock
- GPU undervolt
- CPU overclock
Run at default settings.
Fix 7: Add Game to Antivirus Exclusions
Antivirus may block engine files.
Steps:
- Open Windows Security
- Go to Virus & Threat Protection
- Click Exclusions
- Add REANIMAL folder
Launch the game again.
Fix 8: Increase Virtual Memory
Low virtual memory can trigger LowLevelFatalError.
Steps:
- Open Advanced System Settings
- Click Performance Settings
- Go to Advanced → Virtual Memory
- Set:
- Minimum: 8000
- Maximum: 16000
Restart PC.
Fix 9: Update Windows
Outdated system files can cause crashes.
Steps:
- Press Windows + I
- Open Windows Update
- Install all updates
Restart PC.
Fix 10: Reinstall the Game (Last Resort)
If nothing works:
- Uninstall REANIMAL
- Restart PC
- Reinstall on SSD
This fixes deep corruption.
Additional Tips
- Update DirectX
- Use dedicated GPU
- Close background programs
- Keep at least 20GB free space
- Avoid Alt+Tab during launch
Frequently Asked Questions (FAQs)
What is LowLevelFatalError in REANIMAL?
It is an Unreal Engine crash caused by GPU, DirectX, or corrupted files.
Does DirectX 11 fix LowLevelFatalError?
Yes, for many players it completely fixes the issue.
Can GPU drivers cause this error?
Yes, outdated drivers are a major cause.
Does reinstalling help?
Yes, especially if game files are corrupted.
Conclusion
The REANIMAL Fatal Error LowLevelFatalError on PC is usually caused by DirectX 12 instability, corrupted files, GPU driver issues, or missing runtime components. However, by verifying files, forcing DirectX 11, updating drivers, and clearing shader cache, most players can fix the problem quickly.
After applying these solutions, REANIMAL should run smoothly without crashing.
