This game (currently in alpha) reminds me partly of making Redstone circuits in Minecraft, and partly of some of the more complex and ambitious scripted systems in Second Life – where object oriented programming can involve actual visible objects, and motion and colour can be used to monitor or debug system states.

Still a work in progress, it looks like some clever, intricate and educational things might be possible once the game moves closer to release.

There’s more about Script Blocks (though not very much more just yet) here, and here.