None of Larian's newer games really follow a straight line in terms of story order. There's usually a few references, but most of their games are independent stories, taking place in the same universe though. You should really play the Enhanced Edition of Original Sin when it launches next week. Gameplay wise, it sets the groundwork for Original Sin 2, although OS2 will be even better. I hope
Yes, it's a turn based game.
Plus I have a feeling Original Sin 2 will be delayed to 2017. So there's no reason to wait.





