Quick Answer

On ROG Ally X, Lethal Company crashes are usually caused by mod loader mismatches, damaged Steam files, overlays, or outdated drivers, not by the hardware itself. The safe fix is to test a clean vanilla launch, verify the game files, update the GPU driver, then re-add mods only after the base game is stable. Do not use patched executables or bypass tools; they create more risk than they solve.

Start with a clean launch

Launch the game without BepInEx, Thunderstore profiles, custom DLLs, launch arguments, or overlays. If the clean game opens, the fault is almost certainly a mod version or profile issue. If it still fails, verify files, reboot, and check that Windows, Steam, and the GPU driver are current.

Device-specific checks

ROG Ally X has more than enough power for Lethal Company when the software stack is healthy; even modest systems should target around 60 fps at 1080p. Handhelds should be tested on their standard performance mode before tuning, while desktop RTX cards should use a recent NVIDIA driver and default control-panel settings. Keep antivirus exclusions cautious and only for trusted game folders.

Mods and multiplayer safety

Lethal Company groups often fail when one player has a different mod version, extra dependency, or outdated profile. Rebuild the mod pack from a known shared list and test with one host before a full lobby. If the issue appears only online, check lobby mods, invite flow, and Steam connectivity before blaming the GPU.

FAQ

Is this problem caused by ROG Ally X?

Usually no. ROG Ally X is capable of running Lethal Company; the more common cause is a mod, file, driver, or overlay conflict.

Should I delete all mods?

For testing, yes. Move the mod profile aside, launch the vanilla game, then add the shared mod pack back in small groups until the failure returns.

What if the game still fails after file verification?

Update the GPU driver, disable overlays, reboot, and test a new save or lobby. If only one profile fails, keep the clean profile and rebuild the old one carefully.

TIP

Fix Tip