There’s trouble brewing in the metropolis, and only one thing can stop it: guns, and lots of ‘em! Artillery pieces, mortars, mines, alien blasters, atomic super-gizmos, that’s what it’s going to take to save the city! And you’re in the middle of it all – with three friends. Fortified! combines the best aspects of tower defense and third-person shooters with a healthy dollop of class-based teamwork to boot. All of it is set in a 1950s space-invaders movie where it’s up to your team to protect the Earth from flying saucers, every day of the week.