Gunmetal Switchyard – Tower Defense

Sci-fi tower defense

Gunmetal Switchyard - Tower Defense is a single-player sci-fi tower defense game about protecting a server hub’s data and restoring a world that has stopped answering. You follow Command through deserted facilities, evacuation routes and ruined cities, defending the network while searching for signs of the people it was built to serve.

Machines attack the hub to steal data orbs and carry them to an exit. Destroying a machine that’s carrying an orb sends it back toward the hub, but another machine can intercept it. Your defenses have to cover both the attackers moving in and the orbs being carried out.