In Satellite Defender you are in control of the placement and upgrading of the Satellite Defense System that is protecting the planet from an onslaught of asteroids.
Each tap can place a satellite. Choose the type you want to place from the top of the screen, and then tap the area you want to place it. Simple.
Each tap can upgrade a satellite. The world is ending and theres no time for chitchat. If you have the money, the satellite will upgrade.
Can you save the world?