Focus on named sectors atleast till overgrowth. Then attack low threat sectors and secure them.
Bonus: spam turrets in a sector that is under attack then leave. You don't even need to supply ammo or power once you leave.
Mindustry is a hybrid tower-defense sandbox factory game. Create elaborate supply chains of conveyor belts to feed ammo into your turrets, produce materials to use for building, and defend your structures from waves of enemies. Features include a map editor, 24 built-in maps, cross-platform multiplayer and large-scale PvP unit battles.
Download from here!
Focus on named sectors atleast till overgrowth. Then attack low threat sectors and secure them.
Bonus: spam turrets in a sector that is under attack then leave. You don't even need to supply ammo or power once you leave.