Sorry if this has been asked before.
So, I bought ESO somewhere back in 2014 (if memory serves well), which came as 4 CD's, and now I see some friends playing it on Steam.
I know I can play with them, no problem, but I have a few questions.
1. Since I don't have it on Steam, I presume I can't buy DLC's for this game via Steam (or Humble Bundle)?
2. Can I somehow get ESO and my account on Steam without buying the game again?
I know I can add it as a Non-Steam game, but that won't help me in what I'm trying to achieve, right?