Venne rilasciato il 9 ottobre 2007. Auguri!
(https://forum.freeplaying.it/proxy.php?request=http%3A%2F%2Fi.imgur.com%2FE2J0m3E.jpg&hash=9850ee0c2684703067097a8e322f142aac32243a)
Fonte:
https://www.reddit.com/r/gaming/comments/2ip7ay/portal_was_released_7_years_ago_today_happy/
The cake is a lie.
Ricorda, Bruno :D