Tower of Hanoi is a solved mathematical problem. If you make a puzzle game try to make something new and interesting. Also, the game is very unpolished.
Sometimes just waiting a while makes blocks fall down. I'd guess that's a problem with the physics engine being used. Oh well, the game runs pretty fast and seems rather realistic.
Never seen a game with blocks that had orientation dependent force like this; they have some interesting motion. I wonder if it is possible to get them into some kind or orbit or perpetual motion.
Also, please get rid of the "choose a shape to begin" at every single level every time. It's getting annoying.
This game reminds me a lot of simutrans. If someone is looking for a very in depth transportation game with complicated logistics, try that.
This game has a lot of potential as I like this sort of logic play. But some aspects of it just make it unpleasant to play. One thing is that natural disasters are extremely frustrating, making you rebuild what you've already done, it gives you tedious work to do basically. Also I'd like for factories to have more than one beginning track to prevent last second collisions. Hotkeys are needed to reduce all the clicking that's necessary to play.
 "Disaster Will Strike 2"){kind=icon}
 "Tower of Hanoi"){kind=icon}
 "Defendfishboat"){kind=icon}
 "Robot Wants Puppy"){kind=icon}
 "Spewer"){kind=icon}
 "Imperfect Balance 2"){kind=icon}
 "2012: Saving America"){kind=icon}
 "Railway Valley"){kind=icon}