If you and your son are using different SE ID acconts they would need to be different PSN acconts like It says on here. http://lodestone.finalfantasyxiv.com...96bf81c212957d Multiple copies of FFXIV: A Realm Reborn for PlayStation 3 may be registered to a Sony Entertainment Network account. Please note that only one Sony Entertainment Network account can be linked to a Square Enix account, which allows up to eight service accounts.