This is the original OG Olde Skoole edition of Dragon Age: Origins, and NOT the Ultimate Edition which is currently sold. This version is no longer listed on the Steam store, though the key should activate fine. If you want the Ultimate Edition, this is not it, which should probably guide your actions. If you want it for the breezy joy of owning this otherwise generally unavailable game, then this is it, baby.

This also means that if there are problems with activation, I can't replace the key. As I said, it's an Olde Key, but it's newly revealed, and should ideally work fine.