Whether you need to launch a free or paid video game that is related to Epic, you need to have your personal Epic account.
Go to the following website: https://www.epicgames.com/id/register
Click SIGN UP WITH EMAIL
Note that you can use only the first option of Epic authorization on Boosteroid, for more information, please take a look at this article.
Fill in all the empty fields and click "Continue"
Complete the verification of your email address