awesome setting. too bad it is so short of a game. the art is lovable. not sure if such a massive engine like unity was a wise choice for this - a dev can see that had there been more time or an even better workflow (for example with a more lightweight framework) then there could have been more in the game. but if it works, it works. also not sure how about the other three games without looking into them.
the game overall is.... not terrible but needs more content to become great.
it is something a player can imagine a 20+ years veteran would done: maybe more little stuff then a junior/beginner would have done in this timeframe, but at least it is done really well, even if some stuff looks "default".