Very addicting gameplay to try (and sometimes futilely) to improve and optimize. I would often have issues with my NPCs not picking up boxes when they follow the same route as me, yet it was very humourous when it didn't always go to plan. I'm sure if I were more meticulous it would've improved, and I wouldn't really want the other characters to perfectly work every time because that's part of the fun. Deceptively simple concept that can get very layered and interesting. Personally, I wasn't able to make the most efficient system of transport, but if there could always be some method (even if very difficult) to make a completely looping system, that would be super satisfying. Great game!