Dragon Age: Origins
I know this is stupid question. Can anyone tell me how do i know my games is Original Steam/D2D or Original retail version.
If you downloaded it legitimately, you likely have Steam/D2D.
If you downloaded it via BitTorrent (shame on you, buy the game to support having more games made of this quality), you have the retail version.
If you bought the box and have the physical copy of the game, you have the retail version.