In June 2011, Sony launched a "Welcome Back" program following the outage, allowing all PSN subscribers who joined prior to April 20 to download two free Play Station 3 titles and two free Play Station portable games.Users also received 30 free days of Play Station Plus, while users who were already subscribed before the outage got 60 free days.
It required a network adaptor, which was available as an add-on for original models and integrated into the hardware on slimline models.
However, Sony provided no unified service for the system, so support for network features was specific to each game and third-party server, and there was no interoperability of cross-game presence.
Play Station Network is offered and maintained by Sony.
Play Station Network (PSN) is a digital media entertainment service provided by Sony Interactive Entertainment.
Play Station 4 users have the additional option to tie a Facebook account to their Play Station Network account, and their profile picture will automatically update whenever they change their Facebook picture.