I build playable mobile games around a clear core mechanic. We define the controls, rules, first levels and target device before development begins. My own released iPhone game TABUNO uses physics and one-touch controls. Living Frame, Sticky Friends and Pendula Pals explore spatial, tilt and pendulum puzzles. For your project, I can develop the gameplay, interface, level flow and testable build, then hand over the source and setup notes. The hourly scope and estimated effort are agreed in writing. You review progress at the milestones we set together. Send your game idea, references, available assets and target platform.