As required, type in your full Social Security Number and confirm that you are over 21 years old.Select the United States as the country of residence and provide your physical address.In a separate line enter Harrah’s online casino promo code if you have one.Next, you need to create your username and password, type in your phone number and answer one security question of your choice.For successful identity verification, provide your full legal name and specify your gender.Go to the official website of the casino or use the Harrahs online casino app.For a smooth and fast registration, follow these steps: The sign-up process is not complicated and will take a few moments. To get access to bonus offers and gambling options provided by Harrah’s casino PA, you need to create an account through the official website or via the mobile casino app. How To Sign Up With Harrah’s Online Casino PA Now, with the approval of Harrah’s gaming license in Philadelphia, CIE expands its operation into Pennsylvania. Harrah’s casino PA is operated by Caesars Interactive Entertainment (CIE), which is famous for its online gambling products in Nevada and New Jersey. Harrah’s online casino PA is not one of the biggest real money casinos in the state, yet every month, thousands of PA gamblers register with this trusted casino.