TL;DR
- Always backup game files before modding to prevent data loss
- Use Thunderstore Mod Manager for safe and organized mod installation
- Install BepInExPack first to enable modding framework
- Verify game version compatibility to avoid conflicts
- Create separate profiles for different mod configurations
Transforming your Lethal Company experience through modding opens up incredible possibilities for customization and enhanced gameplay. The cooperative horror title has captured players’ imaginations with its perfect blend of tension and humor, and mods can elevate this foundation to new heights. However, proper preparation ensures your modding journey remains smooth and risk-free.
Before diving into the modding process, establishing proper safeguards is crucial. While Lethal Company’s mod ecosystem is generally stable, unexpected issues can occur. Implementing these protective measures takes only minutes but saves hours of potential frustration.

Version compatibility represents another critical consideration. Currently, most mods function correctly with the latest Lethal Company build. Confirm you’re running app ID 1966720 with build ID 12681469 for optimal performance. Access this information through your game properties menu under the “update” section.
Pro Tip: Create multiple backup versions when testing extensive mod collections. This allows you to revert to specific configurations if compatibility issues arise later.
With your safety measures established, the actual mod installation begins. Unlike other games that offer multiple modding approaches, Lethal Company benefits from a streamlined, single-method process that I’ve found exceptionally reliable across hundreds of mod installations.
The Thunderstore Mod Manager provides the foundation for organized, conflict-free mod management. This tool simplifies what could otherwise become a complex file management challenge.

Begin by downloading and installing Thunderstore Mod Manager. Launch the application and select Lethal Company from the available games list. This establishes the proper framework for subsequent steps.

Profile creation represents your next critical step. Establish a dedicated profile for your mod configuration—this enables you to maintain separate mod setups for different playstyles or multiplayer sessions.

With your profile active, install “BepInExPack” as your foundational mod. This package transforms Lethal Company into a mod-ready environment, enabling other modifications to function correctly.

Common Mistake: Many users skip profile creation and install mods directly. This leads to disorganization and makes troubleshooting significantly more challenging when issues emerge.
After completing these steps, your Lethal Company installation stands ready for extensive customization. The modding community continuously develops new content that can transform your gameplay experience, from quality-of-life improvements to complete gameplay overhauls. For those exploring other gaming experiences, our Battlefield 6 Complete Guide offers similar comprehensive coverage for that title.
Action Checklist
- Backup original game files through Steam’s local files directory
- Verify game version compatibility (app ID 1966720, build ID 12681469)
- Install Thunderstore Mod Manager and select Lethal Company
- Create dedicated mod profile for organized management
- Install BepInExPack to enable modding framework
No reproduction without permission:Tsp Game Club » How to Install Lethal Company Mods (Guide) Complete Lethal Company modding guide with backup strategies and Thunderstore manager setup
