Fortress Worlds

<p>In some of our greatest wars on this world we have seen entire regions covered in fortifications, but in great wars across whole regions of our galaxy, could we see entire planets fortified?</p><p><br></p><p>Learn more about the game and see it in action at upperstory.com/spintronics</p><p>Use the coupon code ISAACARTHUR for 10% off your total purchase</p><p><br></p><p>Visit our Website: http://www.isaacarthur.net</p><p>Join Nebula: https://go.nebula.tv/isaacarthur</p><p>Support us on Patreon: https://www.patreon.com/IsaacArthur</p><p>Support...