Check out Defend The Planets, a simple but fun defense shoot em up with old school arcade action gameplay!
Free version: Please login to see this link...
Full version: Please login to see this link..
There's also an alternate "Help The Planet Edition" which costs a tiny bit more but where 50% of all earnings to towards helping the planet (earth!) against global warming and climate change through Please login to see this link. and greenpeace.
So while you're defending other planets against Aliens, you're also defending our own planet!
HTP Edition: Please login to see this link.
Would really apprecitate good ratings and your support!
PS. Note that the android exporter is still in beta. The game runs fine on newer devices but older devices running android 2.2 may run into problems.