We all have played lethal company and it's a really a good fun game to play with friend's, but this game has 1problem that it doesn't let us play with more than 4player's. But we want to play with more player's and have more fun. So, for that we have to installing the multiplayer mod for lethal company to get more than just four players with this you can host huge lobbies.
First of all, you'll need to download BeplnEx this is a super simple thing to do you'll find BeplnEx simply scroll down and choose x64 there unless you're on a 32-bit system more than likely you're 64, now go ahead and install this.
In Steam right click lethal company then manage and choose "browse local files" then simply open up the zip. Then drag everything from inside the zip into the lethal company folder.
Next, you'll need to download the "Bigger Lobby mod" first of all download the LC API plugin to allow this mod to work. Click manual download and open the zip then once again drag everything out and into the lethal company folder. When prompted about combining things just make sure to click yes after completing the moving everything from the zip you can now delete the zip.
Next up "Bigger Lobby" this is the main mod you need. This mode will allow you to host server more than 4 players. Now let's click manual download and open it up once again drag and drop to combine absolutely everything if you get a prompt just click replace and that's it.
Now all we need to do is launch up the game click "play" and once in game click "online" and you should see in the bottom right corner it say's "40 MOD" that means you have mod. So, you can host and you can enter a max number of players. And you should be able to host lobbies bigger than four players.
Remember more player equals more lag so you may want to limit the player to something a bit less which is maybe 16 or 8 which is fine. Then we'll create the server and just like that you're able to invite pretty much as many friends as you want.