Put this in my Steam library

[Dajjer]

I got this game a long time ago, and It' still in its original unopened DVD case. I see no key. But now that it is on Steam, does anyone know how I can officailly load the game in my Steam library?

[Sun_S]

If you are still interested in an answer, there are 2 ways:
1) Buy it on Steam proper (of course).
2) Install it from CD, then add it to your Steam library via this method:
https://support.steampowered.com/kb_article.php?ref=2219-YDJV-5557&l=english

So yeah, you won't be able to just download it from Steam when you didn't buy it from them, sadly.

[Dajjer]

LOL. Thanks for the response