My 1 cent to this topic: just stop...
The time you spend on a "Game" to earn "Money" is actually losing you the greatest currency of all = TIME! (been there, Done it)
There is a level in the world where automation do some earnings in games.
There were / are still wow automated hording scripts level a character up to max level.
Bots that mine the gold.
(These scripts still work and do earnings and still can be bought)
As scripting these routes / Actions is quite simple im sure any game that has potential to materialize items already have these bots working.
Not even then the mere cpu and gpu power is worth to the power bill.
I do see the automation of a game currency system a stepping stone into the world of true process automation where money is not your concern anymore.
Even the biggest players like aimjunkies developers do not earn gold in this world.
If something take a look into a automated way of earning money in a game. (Just look what bots are avaiable and what loop you can find

)
This will give you the step stone into the era of digitalization we are in right now.
See real life world as the true game, Money is lying arround everywhere, just got to get the right angle looking at that opportunity
