When you purchase The Sims 3 or any of its Expansions or Stuff Packs through Origin, you no longer need to manually register your product through The Sims 3’s website. Just make sure that your EA Account details match the details of your Sims 3 account, and Origin will register your products for you.
If you don't already have Sims 3 account, you can make one by going to The Sims 3 website.
If you already own The Sims 3 or any of the Expansion/Stuff Packs, and wish to register them on your EA Account, please follow the steps below. Please note, these are 20 digit codes – if your code has 16 digits, it’s for bonus downloadable content. You can find instructions on how to register 16 digit codes in the next section of this article.
Some expansion packs come with bonus content for players who register their game online. The most common bonus content is where The Sims 3 (base game) and World Adventures will each grant 1,000 Simpoints to a registered player’s account.
These are 16 digits codes for bonus content. If your code is a 20 digit code for the base game or an expansion, please see the earlier section of this article. If you do have a 16 digit bonus code to redeem but have not yet registered your game or expansion, you should do so prior to redeeming your bonus code.