Today I wanted to try the multiplayer in its online mode, and I saw that to join a game you have to know the ID of an existing game. And the same thing happens to create a game, where one has to share the ID. I guess we can use this thread to share the IDs we create or from other players and play online :)

If you're looking for players, try using the Steam game forum or the official Discord, I see people asking there for friend requests/players all the time. :)

Thank you! :) I joined the Discord. The bad thing is that as I have the game in GOG I could not add as friends to those who have the game on Steam, but at least I can join their games :)

So you're saying you can play with Steam friends with a GOG copy of the game? What's the caveat?

In the twitter of Monster Prom it was mentioned that one can play with people who do not have the game on Steam, and is only necessary to know the ID of a multiplayer session or share the ID that one creates when starting a game online :)

I have not played with Steam users yet, but I think it works.

Hey, is anyone looking for ppl to play online with? Add me

It works! I've played it several times with friends who play on Steam, while I used the GOG version. As Sjuan said, all you need is the session ID.

I was rather impressed with the latency, too - opposite sides of the world, but very little lag. In fact, the exteral voice chat we were using had more lag than the gameplay!