This game was my first dream project to complete, as it promised more than it actually delivered.  But it turned out that the final sequence of the development phase was not so good. Designing a game without a visual theme makes it less attractive to players and maybe not relatable or playable. Since I am not good at the visual aspects of games, I can only write my code better to make this game live. Then I think making additions to the design of this game will improve the gameplay. 

Better algorithm

The math-based mechanics are not working well. I should fix major bugs in this game. They are currently written down in my calendar.

Maintainable codes

Some crucial mechanics work without bugs, but the way I wrote them is not maintainable or extensible. They should be rewritten as well.

UI design

UI/UX is far away from me, but I need to do it because this game has the worst UI design.

Yeah, I think that is it for now. I just want to make this game more concrete, solid and playable. It can be a good template for a factory game.