Looks like Bethesda will soon be bringing a lot more than just Fallout 3 to Steam, with users spotting some advertisements on the service advertising games like Oblivion and Morrowind.
Reader Tom sends us the above image, and while I haven't seen the same advertisement myself (nor can I see any mention of the games in the retail store), I can confirm that a listing for both "Oblivion: Game of the Year Edition" and "Morrowind: Game of the Year Edition" have magically appeared overnight in my press account.
I, incidentally, have never played any of Oblivion's expansions. Looks like that's about to change.