The concept fits the theme but I felt like there was no reaction to my action, like losing income to take too much time to deliver or accumulate an overwhelming amount of work... I felt like there was nothing to force me to do the work. Also, the map could be smaller for a first level and make the player deliver more and walk less, like in the center of a city... the next level could have far away houses or even other towns... also a receiver could also handle other mail to deliver and get the mailman full of work before the end of the day...idk... sorry if I'm sounding rude.. I just really enjoy the idea and wanted to play a more complex game...
Once again, I liked the mailman concept connecting the houses, the visual style work perfectly but needs some improvements.
Great Concept!