Satisfactory: Fixing Unreal Engine Crashes
Since the upgrade to **Unreal Engine 5** in Update 8 (and 1.0), Satisfactory has become more demanding on hardware. Crashes typically occur due to Video Memory (VRAM) issues, DirectX 12 incompatibility, or corrupted mod files.
1. The "Video Driver" Crash
If you get "D3D Device Lost" or "Render Thread" errors, your GPU is timing out. Try forcing DirectX 11 in the launch options.
2. Mod Conflicts
If the crash log mentions SML or a specific plugin name, a mod is outdated. Remove your FactoryGame/Mods folder to test vanilla stability.
3. Server "Timeout"
On dedicated servers, a crash during startup often means the Save File is corrupted or too large for the allocated RAM.
Common Error Codes & Solutions
| Error Code | Proposed Solution |
|---|---|
| EXCEPTION_ACCESS_VIOLATION | This is a generic generic memory error. 1. Verify Game Files in Steam/Epic. 2. Disable XMP profiles in BIOS (rare). 3. Check if a mod is trying to access a deleted asset. |
| Out of Video Memory | Your GPU VRAM is full. Lower Texture Quality to Medium. If using Lumen (Global Illumination), turn it OFF. |
| Plugin 'X' failed to load | You are trying to load a save that relies on a mod you no longer have installed. Re-install the mod or use SCIM to remove the modded buildings. |
Forcing DirectX 11 (Client Side)
UE5 defaults to DX12, which can be unstable on older cards (GTX 10 series).
- Right-click Satisfactory in Steam.
- Go to Properties -> General.
- In Launch Options, type:
-dx11(or-vulkanif on Linux). - Launch the game.
Forcing a Server Log Check
If your **Dedicated Server** is crashing, you need the log file:
- Path:
/.config/Epic/FactoryGame/Saved/Logs/FactoryGame.log - Look for the phrase "Error:" or "Critical:".
- If you see
UNetConnection::Tickerrors, it is likely a network bandwidth issue. Increase your Network Quality setting.
Note: Dedicated Servers do not run graphics, so "GPU Crashes" are impossible on the server side. If the server crashes, it is almost always 1. A Bad Save, 2. A Bad Mod, or 3. Out of RAM.
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