Planet wars

Planet Wars is a top-down alien shooter.
Simple controls make the game easy and fun to play- use one thumb to control movement, the other to fire.

The real meat of the gameplay lies in earning credits, which you can spend on upgrading your weapons by buying different components. Your weapon has 5 different upgradable parts, this means you can completely customise your gun to suit your style of play. There are over 70 different items and components in the game with which to do this, including 17 core weapons which range from standard rifles to flame-throwers and rocket launchers.

-Main story-driven campaign, narrated by graphic novel style illustrations.
-Over 70 items/components with which to customise your armoury.
-5 Different survival maps with GameCenter high scores.
-A mixture of action and tower defence style gameplay.

Requires iPhone 3GS/equivalent ipod or newer.