I've recently downloaded Circuit Coder. http://sweyla.com/circuit-coder/

It is about digital circuit desgin, gets tricky pretty quickly. But really good thought skills in it.

Cargo Bot is closer in sentiment to Light Bot with programming a machine to perform a function/solve a problem. http://twolivesleft.com/CargoBot/

Same company as Cargo Bot has a programming platform they used to develop it along with various game samples to experiment with. http://twolivesleft.com/Codea/