Today I don't bring good news.
Valve enabled the creation of lobbies and I spent all afternoon finishing up the structure to send information between players.
When tested this system didn't work very well, with some intense lag.
But, I won't stop here, and will do more testing with different send rates and check the pings of the connections. I will keep you guys updated, tomorrow I hope I have good news!
Thank you for your support and feedback!