Hi, sorry for late reply I was working on my new game. Once you get your factory production level to maximum you'll unlock factory multiplier.
Please also try next part of this game - https://www.kongregate.com/games/epicearthgames/idle-fill-factory-2
Hello ! If you could make the multiplayer game, add to your preference to let home troops to defend the city, to withdraw from a battle, to minimize the losses would be ideal for the start! you could diversify resources, for example iron, copper, wood, etc
I'm thinking about it then come back!
I hope you can do this because the concept of the game is a good one, I wish you success!
OldRaven
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Hi, sorry for late reply I was working on my new game. Once you get your factory production level to maximum you'll unlock factory multiplier. Please also try next part of this game - https://www.kongregate.com/games/epicearthgames/idle-fill-factory-2