Thanks everyone for the feedback thus far on Debris co-op. It’s been awesome to see people playing together on Twitch, so we’ll keep an eye on that. This new build addresses some networking issues we’ve seen including one where players would drop connections during level transitions.
If you’re still having issues joining a friend’s hosted game, here's something to try that solved the issue in a few cases (Windows-only for now):
Important: Make sure you launch the game from Steam!
As always, keep us posted if you have any issues and thanks for playing!