Tower Defense: Alien Invasion Game

"Tower Defense: Alien Invasion" is a very addictive, tactical, and fast-paced game in the Tower Defense genre, in which you must fight challenging alien fighters. Strategy comes into play in each level, as you must choose the best place to create one of four different weapons and items so that they do the most damage and stop your enemies in their tracks.

The game has as many as four modes: campaign mode, endless mode, online mode, and player levels. In campaign mode, you must pass as many as 12 levels, defending from the weakest monsters to the strongest alien creatures. In endless mode, you begin the game and will lead the defense against the foreign invaders, overcoming their attacks wave after wave. There will be no end to them. The only question is how long you can hold out! Online mode offers you to play in defense of the tower with other players from around the world.