I created an Epic account by linking my Facebook or Google+ account, but I wasn't prompted to create a password!
If you created an Epic account by linking a Facebook or Google+ account, you should always be able to sign into our services using your Facebook/Google+ credentials. However, if you would prefer to sign in with your email address and a distinct Epic account password, simply click the Forgot Your Password? link on the sign-in page. This will send a password reset to your email address, allowing you to set up a password. You can now sign into our services with your email address and password.