Bro i am on lvl 75 and left the game for a year. Now when i came back, the cost to upgrade everything is too much (metal and thorium) and no way to earn them except get them from factories. Any help or tip as my units are low level as compared to players of the same group. Thanks 👍
![I.N "HALLUCINATION" | [Stray Kids : SKZ-PLAYER]](http://i.ytimg.com/vi/n5B5q1Hwt_U/mqdefault.jpg)
Bro i am on lvl 75 and left the game for a year. Now when i came back, the cost to upgrade everything is too much (metal and thorium) and no way to earn them except get them from factories. Any help or tip as my units are low level as compared to players of the same group. Thanks 👍