Play any type of Game at Y8.com. The biggest Game Collection to play free online. Flash, Unity 3D, Html5, Android, Java and Shockwave.
If the game freezes, just click inside it (games can get unresponsive if you click elsewhere on the page).
Survive as many levels as possible by buying and upgrading turrets to destroy aliens. Getting rid of aliens makes money which can be invested or spent on upgrading.
This game is played by mouse only.