Doom 3 Key?

[Kosmiche]

Hey guys, just wondering I have a doom 3 game key from a retail copy of the game.

But I'm missing one of the cd's, this game came on 3 cd roms for whatever reason and 1 of them is missing

Is there somewhere I can enter my key and download the game? Something like steam perhaps, but I don't think it will work in steam itself.

Thanks all

 

[Ascendancy]

Probably best just downloading the missing disc and going from there.

 

[Cliste]

You might be able to do it with Desura.
Download the Desura client (Google search), add the key to your library.

I think I've done it before.