This was an interesting game. I think it would look good in 3D, maybe even VR!
I liked the premise, and it fit the theme well.
I think you could add some autonomy to the machine, and let it slowly destroy the world without supervision.
I was also wondering if there was a reason for the stamps not auto selling, ( I don't think my poor mouse can take much more)
Overall, it was a fun concept, and definitely could be expanded into a really cool experience.
It would be great if you could take a look at my game! (: