Game itself is wonderful, and well worth the full price. But the GOG version is missing some important content in the Community Add-on updates which is currently only available on Steam, and this makes the viable build variety in late game suck. Currently, there is also a great beta patch that is only available through Steam. Hope the devs will eventually make all of this available. This game is wonderful and I'd love to have the real definitive version of the game on GoG.