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Fortnite will throw players into "scripted events and corridors," challenging you to explore the environment for resources and then build fortresses you'll use to thwart waves of enemy attackers. The game features an RPG-like progression system and "Diablo-like looting."
What's more, Fortnite will contain multiple campaigns of "varying lengths," as well as procedurally generated worlds and some kind of PvP component. You can sign up for a chance to play Fornite through its alpha at the game's website.