Fortified is free on Steam for the next 48 hours!*

Add the game to your account now and own it forever.

Fortified is an explosive strategy shooter where players will defend the Earth against a menacing Martian invasion in the 1950s. Play as one-of-four pulp inspired heroes as they fight swarms of terrifying robots with an arsenal of Cold War era weapons and experimental technology. Protect the city by building a network of defensive structures, commanding an army, and jumping into battle against dangerous sky scraping attackers. Fight for Earth alone or with up to four players for the ultimate co-op defense experience.

*Offer ends June 8 at 11am Pacific