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Moonjump - TiltStorm

Tilt to move, touch to fire in Tempest-style iPhone shooter.

The first Moonjump game has been submitted to Apple for review. TiltStorm is a 3D arcade game with no virtual controls: Tilt to move, touch to fire.

Design decision number one was native controls. The player travels in a circle, similar to Tempest and Gyruss, the tilt controls allowing fast or slow movement. Touching the screen anywhere to fire results in no virtual controls (OK, not everywhere, touching the score triggers pause).

TiltStorm is a universal app for iPhone, iPod touch and iPad, and runs at 60 frames-per-second even on an iPhone 3G. It has Game Center high scores and achievements, all submitted in iOS 4.2.

Moonjump is a one-man-band. Andy Cowe has been a games designer since the 90s, working for companies large and small on console, PC, handheld and mobile, starting at Acclaim on Forsaken. Yet another redundancy, this time from Hands-On Mobile, became an opportunity to go solo and develop for the iPhone.

The ten full-size screenshots are also on For anything else, contact


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