Fallout 4 is delivered as Steam cd key after your purchase. Fallout 4 activation and installation is done entirely on Steam. Internet connection is required. Bethesda Game Studios, the award-winning creators of Fallout 3 and The Elder Scrolls V: Skyrim, welcome you to the world of Fallout 4 – their most ambitious game ever, and the next generation of open-world gaming. Buy Fallout 4, try to survive.