@Mango1351 , you start by clicking the sell button, it will give you $1 per click at the start. Once you reach enough, you buy your first powercell. It will make money and produce heat, both of which you need to deal with, due to too much heat will break your placed things.
 "Idle Mine: Remix"){kind=icon}
 "Reactor Incremental"){kind=icon}
 "Hands of War 3"){kind=icon}
 "Time to be a Hero"){kind=icon}
 "GrindCraft"){kind=icon}
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 "Idle Empire 3"){kind=icon}