Protector

You control the placement of defensive turrets around a planet's surface. Waves of enemy ships approach from the edges of the screen, and your job is to stop them from reaching the core. You earn money from destroyed enemies to build more turrets or upgrade existing ones, choosing between different types like rapid-fire lasers or slower, more powerful cannons. The game starts calmly but the pace quickens, with later waves becoming a frantic scramble to reinforce weak points. It feels like a tense, focused puzzle where every credit counts.