Mainframe

The Mainframe is the most important element in the game. It has the ability to summon robots, hack enemy robots, generate Firewalls, repair damaged robots and/or Firewalls under its control, attack enemy Mainframes, disable enemy robots, and defend Nodes under its control from incoming attacks. In Campaign Mode, the player controls the Victoria Node, the only Mainframe still controlled and monitored by a human. Initially, every single Node/Mainframe (excluding the Victoria Node) are controlled by the Empire of Machines. As the player progresses through Campaign Mode, the player will control more and more Nodes. When the player launches an attack on a Node controlled by the Empire of Machines, that Node's Mainframe will try to defend the Node and stop the player's attack. As long as they have enough energy to do so, the player can freely attack whichever enemy Node/Mainframe they choose (nevertheless, the game will not allow the player to attack certain nodes if the level difference between the player and the enemy Mainframe is so great that the game would deem an attempt to attack the enemy node as a suicide mission.) Interestingly enough, enemy Mainframes will not attack player-controlled Mainframes and will not attempt to regain control over any Nodes that the player gains control over, regardless of how many nodes the player has taken control over.