if it's still in the steam library try right click the game icon view CD key
edit to a link to an FAQ http://answers.ea.com/t5/The-Sims-3/FAQ-Steam-VS-Origin-VS-Discs/td-p/3135440
This does not work for me it’s too long!?!
@galaxycookie300 Do you mean that the code is longer than the Sims 3 Store or Origin allows? You want the option to "register a game," which requires 20 characters, rather than "redeem a code," which only requires 16. The first option is for the base game and its packs; the second is for bonus content.
I figured it out but when I click register it brings me to the “it looks like you already have an account...ect.” But I go put in the password and it doesn’t work then I click forgot password and it asks me to sing in again I have been trying to figure this out for almost a year now and at this point I’m ready to just give up...
