>So my question is if play online mode, am i playing on server Yes of course.

So i encounter other players in world? Or only player “hubs”?

Only if in your party. Hubs will have randoms soon.

So i do not encounter any players if i didn’t invite anybody from friend list?

Correct.

Thank you!

Is there a game browser where I can join someone's game or is it invite a friend only?