Re: Register sims 3 bought on Steam on the Sims Store

@talksic3  If you already have an account on the site (www.thesims3.com ), sign in, scroll down to the bottom of the page, click "Register a game," and add the product key.  If you don't have an account, you'll be asked to input a key when you're creating one.

Since this thread is a few years old now, I'll lock it here.  If you still need help, please create a new thread describing the issue, as well as where you bought the code.