Hello,
A new update was released today, and it is now possible to send Steam invites to your friend to let them join your world easier than before.
At anytime while in game, simply use the "Invite friends" menu and your friend will receive an invite.
Using this feature requires a good internet connection speed because you host the game for your friend and your world needs to be streamed to him.
This update also fix a lot of bugs in multiplayer servers. Because a lot of internal changes have been made, it might also create new bugs, if so please report them!
Thanks again for your support!
Regards,
Marc