The sewers are in my opinion not used to its fullest potential. It has so much area that there could actually be a dungeon with trash mobs and 3-5 bosses. Also the story could continue in this area, what causes the mushrooms to grow? For example you could add some content after the bridge (it is not passable atm) which leds over the mushrooms. Im just saying this because you did put a lot of work into the sewers and its the only area in the map which is very empty (units fitting the sewers could be mutated rats and other stuff).
Also on the visual side note you can run into many walls and ground tiles in the sewer, fixxing that would also be great. This brings up a new idea: How about some secret chambers in the sewers with entrances hidden in walls?
Also on the visual side note you can run into many walls and ground tiles in the sewer, fixxing that would also be great. This brings up a new idea: How about some secret chambers in the sewers with entrances hidden in walls?