Okay, so here’s the deal, I was messing around with Lethal Company the other day, right? And we ran into this super annoying problem: a buddy of ours wanted to jump in after we’d already started a run. Pain in the butt, I know.

First thing I did, naturally, was Google it. Figured someone else had to have dealt with this already. Saw a bunch of forum posts saying it was impossible, game doesn’t support it, blah blah blah. But I’m stubborn, so I was like, “Nah, there’s gotta be a way.”
So, I started messing with the game settings. Dug around in the config files, hoping to find some hidden option to allow late joins. No luck. Everything seemed pretty locked down. Strike one.
Then I thought, maybe there’s a mod for this. Went to Thunderstore, started searching for anything related to “late join,” “mid-game invite,” stuff like that. Found a few that sounded promising, but most of them were outdated or didn’t quite do what I wanted. They were more for rejoining after a disconnect, not for fresh invites mid-session. Strike two.
But then, I stumbled across one that looked interesting. It was called something like “MoreCompany” or “LateGameLobby,” I can’t remember exactly. The description said it allowed for more than four players, which wasn’t exactly what I needed, but I figured maybe it messed with the lobby system enough to allow invites after the game started. Worth a shot, right?
Installed it using the Thunderstore mod manager, launched the game, and hopped into a lobby with my friend. Started a run, got about halfway through looting the first moon… and then I tried inviting our latecomer. Held my breath… and IT WORKED!
The dude popped into the game like nothing happened. He was a little confused about where we were and what was going on, but after a quick rundown, he was right in the thick of it, getting chased by coil-heads like the rest of us. Hallelujah!
Here’s the breakdown of what I think happened:
- The mod I used (the “MoreCompany” or similar one) likely bypasses the default lobby limitations.
- By allowing more than four players, it probably opens up the invite system in a way that allows for mid-game joining.
- It might mess with the game’s stability a little, we did have one crash later on, but it was worth it to have our friend playing with us.
So, yeah, that’s how I managed to invite someone to Lethal Company mid-game. It was a bit of a hassle, and required some trial and error with mods, but it’s definitely possible. Just be prepared for a potential crash or two. Happy scavenging!
