Hey ya'll, In the final version of the game we've limited online co-op to only 2 players for the sake of network performance. This happened a few updates ago and we've stated our intentions in the designated update announcement. However, due to many requests and questions about this - the dev branch is once again set for up to 4 players for online Co-op. If you've wanted to play the game with more friends - you can simply switch the game's branch in the BETA settings of the game on Steam and select Goldenlightdev (no password needed). Make sure that all of your friends set Golden Light to the beta branch, and play the game in squad once again (at your own risk because of stability reasons). Hope this helps and have a great one, meatos