The news broke when developer Epic Games announced that it is handing out a golden ticket granting beta access to the Unreal 4 title at PAX this week.
Joystiq was given official confirmation by producer Tanya Jessing, who said "there will definitely be a closed beta", but it is yet to be determined whether it will be followed by an open beta.
Fortnite is a sandbox co-op survival game built on Epic's next generation graphics engine. The title was unveiled at Comic-Con International earlier this summer.
The game uses building as its core, with players having to work together to scavenge gear and building materials, create fortified structures and then defend their base from waves of monsters.
Fortnite is expected to be released for PC in 2013.
Screenshot gallery - first images of Fortnite:
Copyright: Epic Games