Train Shunting

Use onscreen joystick to drive the locomotive.
Assemble the train ordering cars.
Touch toggles to turnout.
Touch triangles to activate decouplers.
For an additional challenge, leave all three blank cars in the third siding.

No personal data collection.
No micro-payments.
Simple graphics: Minimize addiction by not using flashy animations.
Intellectual: Game are more about logical thought than reaction times.