Re: Where is The Sims 3 Base Game on Origin?
You don't look in the Origin store for it, you redeem your current product code and it is added to your games library in Origin. You then download it. All the help and instructions you need are in this post - http://answers.ea.com/t5/The-Sims-Mac/CURRENT-ISSUE-The-Sims-3-Disc-Authorisation-No-Disc-Errors/m-p/4882518#U4882518