Earthlings established a colony on another planet in a distant galaxy. To keep the colony going, resources are needed that can be found on nearby asteroids.
Soon after establishing the colony, aliens started attacking in order to get precious resources for themselves.
Your mission: protect the resources!
Play regular levels, to unlock bonus levels in this tower defense game.
Complete quests, collect achievements, get upgrades, assign a general for hours of fun gameplay!
Last updated on 2016年05月03日
此版本包含小幅錯誤修正和一般改善。請更新至最新版本，以獲得最佳體驗。
