Blue Defense!

Blue Defense! is a classic shooter game. You are the defender of the blue planet have to destroy the incoming red fleet. The planet fires a constant stream of bullets directly upwards. By tilting or even rotating the device you can aim at incoming enemies. The planet starts with roughly 6.7 billion inhabitants. Every impacting enemy kills part of the population and the game ends when the last inhabitant is killed.

The game is essentially endless, i.e. it is all about surviving as long as possible and getting a high score. The scoring is innovative; every enemy killed will increase a score multiplier and therefore increase the rate at which you get points in the future. Every hit your planet takes will halve the multiplier, however. There are a number of different levels but the order is random every time you play the game. The game also gets faster the further you progress. It is also possible to directly select and practice a particular level.