In 2185 people have already mastered deep space and colonized asteroids in their galaxy. However, the people were threatened with danger of alien invasion. Because extracting resources and energy is one thing and just taking them away is another thing.
Your task is to protect the main power core from intruders, having teleports and towers at your disposal. If the intruders get to the core, the game is lost. Use your resources to protect your territory. Unfortunately, you will not be given tactic opportunities, and it will be possible to build towers only in definite places. 25 levels, 30 towers, quick gameplay, 7 types of enemies. Compete with other players in OpenFeint rating system .