my friend put me onto a bridge building game about two years ago. had no idea they where a lot of fun. the last level had you create a suspension draw bridge that had two hinges on each side so the whole bridge had to lift then the ends had to fold back so there would be enough room for a tall ass ship to go through. MAN was that a rewording feeling when I completed it! like holy shit I can't believe that worked. I highly recommend these kinds of games even if you don't think you will like them steam lets you return games for a reason.