Lethal Company: Best settings.nut for Low-End Modding

The goal for low-end modding is to strip the post-processing layers. Lethal Company renders at a high resolution and then uses “down-sampling” filters to create its pixelated look. This double-processing kills FPS on integrated graphics. By using the HDLethalCompany mod, we can force the game to render at a true low resolution without the extra overhead.

File Location (Mod Config)

If you are using Thunderstore or r2modman, your configuration file is located at: \BepInEx\config\com.github.sligili.hdlethalcompany.cfg

Best Config Settings for Low-End PC

Edit the following lines in your HDLethalCompany.cfg for a “Potato Mode” profile:

[Rendering]
## The internal render resolution scale. 
## Set to 0.5 or 0.4 for massive FPS gains on low-end laptops.
Resolution scale = 0.5

## Disabling these removes the "haze" that chokes low-end GPUs.
Enable post-processing = false
Enable fog = false
Enable antialiasing = false

[Quality]
## Lowering texture quality frees up VRAM for modded furniture/suits.
Texture quality = 0
Shadow quality = 0

Performance-Critical Launch Options (Steam)

If you don’t want to use heavy mods, you can force Unity to run in a more efficient mode via Steam. Right-click Lethal Company > Properties > Launch Options:

-screen-quality Fastest -force-d3d11-no-singlethreaded -nolog

• -screen-quality Fastest: Tells Unity to drop all non-essential shader passes.
• -force-d3d11-no-singlethreaded: Forces multi-threaded rendering, which helps CPUs with many low-speed cores (common in laptops).
• -nolog: Stops the game from writing debug files, which can cause “stuttering” on slow HDDs.

Essential Performance Mods

To keep a modded save stable, I recommend these “Invisible” performance boosters:

1. CullFactory: Stops the game from rendering rooms you aren’t currently looking at (massive gain inside the facility).
2. PathfindingLagFix: Optimizes how enemies (like the Thumper) calculate their path, preventing CPU spikes.
3. LethalFixes: A collection of engine-level bug fixes that improve general stability.

Troubleshooting & Common Fixes

• Game Looks “Too Sharp”: If you disable post-processing, the game loses its “crunchy” look. If you hate this, keep Enable post-processing = true but set Resolution scale even lower (0.3).
• Stuttering when turning: This is often caused by the Steam Overlay. Disable it in the Steam game properties.
• Settings Not Applying: Ensure you launch the game at least once after installing HDLethalCompany to generate the config file.

Frequently Asked Questions (FAQ)

Conclusion and Expected Results

By adjusting the HDLethalCompany config and using the -screen-quality Fastest launch option, you are bypassing the game’s inefficient “simulated” low-res look. You can expect a 40-60% increase in FPS, faster loading times into moons, and stable performance even when carrying multiple flashlights.