價格：免費
檔案大小：78 MB
版本需求：需要 iOS 8.0 或以上版本。與 iPhone、iPad 及 iPod touch 相容。
支援語言：英語
You need to protect helpless Earth from danger from space.
Giant asteroids and enemy space ships are trying to destroy our planet.
You are commander of earth defense system, special satellite equipped with devastating weapon. Ami carefully because you can hit Earth surface too.
If Earth is destroyed then your game is over.
支援平台：iPhone