Fortnite is an "action building game" that combines numerous elements from a wide variety of genres. You need to scavenge for materials and weapons as if you were playing an open-world survival game, you need to craft traps and fortifications in order to survive waves of monsters as if you were playing a tower defense game, and you also need to carve your path through hordes upon hordes of monsters in order to solve quests, as if you're playing some sort of run & gun shooter.

Its definitely a strange combination, but from what I've seen so far it manages to be surprisingly compelling. So if you're interested in seeing what Fortnite is all about, allow me to share with you the recently posted gameplay trailer. Its not very long, but it should get the point across quite nicely. Have a look:

If all of this looks like something you might enjoy you'll be glad to hear that Fortnite has now arrived to Early Access (not the Steam kind), though with far more polish than you would expect from a beta. To learn more, or just to give it a try yourself, you should head over to the official website. Have fun!