Lethal Company mods: using Thunderstore, r2modman and shared modpack codes
This guide is for Lethal Company players who want to add mods without breaking their game or losing a save. By the end you will know where mods come from, how to use profiles to keep setups separate, and how to share a working modpack with friends using a code.
Where mods come from
Lethal Company mods are hosted on Thunderstore. Always get mods from the author’s own listing page rather than a random download link someone sends you. Thunderstore pages show the mod’s description, dependencies and any warnings the author has added, so it is worth reading that page before you install anything.
You do not need to download files by hand. A mod manager handles that for you, including any other mods a given mod depends on to work.
Getting set up with r2modman or Thunderstore Mod Manager
r2modman and the Thunderstore Mod Manager both do the same basic job: they install mods for Lethal Company, keep them organised, and let you turn them on or off without touching your game files directly. Either one will work; pick whichever you find easier to install and stick with it.
Once the manager is installed and pointed at Lethal Company, you can browse or search for mods inside it and add them with a click. The manager downloads the mod and anything it needs, then lists it in your active setup.
Why profiles matter
A profile is a saved list of mods and their settings. Instead of one giant pile of mods that you switch on and off by hand, you can keep several profiles for different purposes.
For example, you might keep a small profile with a couple of quality-of-life mods for solo play, and a separate, larger profile for playing with a group of friends who all want the same content mods. Switching profiles swaps your active mod list without you having to uninstall and reinstall anything.
This also makes it easier to isolate problems. If something breaks, you can switch to a near-empty profile to check whether the game itself is fine, then add mods back one at a time.
Sharing a profile as a code
r2modman and the Thunderstore Mod Manager let you export a profile as a code. That code contains the list of mods and versions in your profile. Anyone with the manager installed can import the code and get the same mod list, in the same versions, without having to search for and install each mod separately.
This is the simplest way to get a group of friends running identical setups for a shared session. Mismatched mods between players can cause connection and desync problems in modded Lethal Company, so a shared code is worth using whenever more than one person is involved.
Starting small and testing
- Install r2modman or the Thunderstore Mod Manager and set it up for Lethal Company.
- Back up your save files before adding any mods, in case something goes wrong later.
- Create a new profile rather than mixing mods into a default one.
- Add two or three mods you actually want, not a long list all at once.
- Launch the game through the manager and play a short session to check everything loads and behaves normally.
- Add more mods one or two at a time, testing after each addition.
This slow approach makes it far easier to spot which mod caused an issue, rather than guessing through a pile of twenty mods installed at once.
A note on online play
Mods change game files and behaviour, so treat any online or multiplayer session with mods as something to agree on with the people you are playing with. Stick to mods meant for cooperative play with friends, and avoid anything that claims to give an unfair advantage over other players if you ever play in a setting with strangers.
If something goes wrong
If the game fails to launch, crashes, or behaves oddly after adding a mod, switch back to a previous profile or disable the most recently added mod first. Check the mod’s Thunderstore page for notes about conflicts with other mods or required load order.
If a shared modpack code does not work for a friend, confirm everyone imported the same code and that their manager has finished downloading every mod in the list before launching.
Undoing changes
To remove a mod, disable or delete it from within the manager rather than deleting files by hand. To return to a vanilla game, switch to a profile with no mods active, or create a fresh empty profile. Your original save files are untouched by this process as long as you backed them up before experimenting.
Keep one clean, mod-free profile around permanently. It gives you a quick way to confirm the base game still works whenever a new mod causes trouble.
