Orbit defenders

This game is a Spaceship shooter style game. player needs to eliminate all the planet shape aliens which come from sky before they reach the ground.
there are two modes of game:
1) Level Mode:
Player start from first level and unlock new stuff

2)Infinity Mode:
Player start with initial gold and buys items and fights aliens until game is over.


这个游戏是一个太空船射击风格的游戏。玩家需要在到达地面之前消灭所有来自天空的行星形状的外星人。
游戏有两种模式：
1） 水平模式：
玩家从第一级开始，解锁新的东西

2） 无限模式：
玩家从初始黄金开始，购买物品并与外星人战斗，直到游戏结束。