The space has been always popular topic for game creators. In this flash game you are going to visit this part of our world and you have to defend you reactor. It's a classic TD game, you build and defend your area. The game gives you different towers, form classic to very futuristic. The points you gain from the main generator and the smaller ones can be used for building the new structures or improving the older ones. You mustn't let the main generator to be destroyed or you lose the game.