i donāt think so.
the āproblemā is that anybody can join.
so when we want to play a game with SP friends itās a good idea to start a game at a certain time.
at least it is no longer a death sentence when a random stranger should join.
good news: Sebastian Mellin from Brettspielwelt just answered to my email and says he likes the idea of password protected games and will take a close look on that option. very promising!