The game and all DLCs start without any issues, Galaxy is NOT required to play. Loads are faster than in steam-version. I 've just bought "Digital Deluxe Edition" today, so I didn't play it much and can't speak of any bugs. What I find a bit odd is that the discount for "Standard Edition" and "DLC Season Pass" is 85%, but the discount for "Digital Deluxe Edition" is 75%. There is apparently 0 difference between buying "Standard" + "DLC" separately versus buying "Deluxe". Thus, I 've overpaid 4.5 euro. But that's not a big deal, so I won't ask for a refund.