Purchasing Sims 3 expansions on Steam without owning Sims 3 base game on steam
I have bought several Sims games and expansions recently on Origin, Disks, and Steam. At this point I've purchased about 10 Steam versions of the Sims games and expansions (since I'm buying for 2 players), and FYI: all Steam Sims games and expansions/Stuff packs come with their own CD Key which can be used to register the steam-purchased copies on Origin, and allow you to download the Origin version as well. Thus the key is not "only redeemable" on steam.