bitwiseshiftleft

I, too, am logged into Steam but am getting "You must be logged into Steam". I am trying to play on a MacBook Air. I have previously been able to play on a Windows desktop. I just installed Offworld, so the game is up to date. The first time I launched Offworld, I was running Steam in offline mode, but now I am in online mode and still cannot play. I have tried both launching the game from within Steam and launching it from the launcher, with the same results