itch.io

I beat the  hardest difficulty, all you really need to do is pull all the resources and then sell them, then run the 2 power -> $25b until you're done.
I do get all the other mechanics but some buildings are just worth more than others, like steelworks produces $5 of effective sell value over the raw resources but making data from it produces $7, which could be fine... If it was hard to make data. It's incredibly easy to fulfill data's requirements.

So I'd say:
1. Make raw resources worth a lot less. You can remove the $1 selling cost and just make resources worth less so the math is easier, too. This means the refined/merged resources are actually necessary. Same with drawing, the $1 cost could just be taken away from the sell value of raw materials.
2. Make some buildings have much harder requirements. Data making's requirement of 3 same-quality materials is basically free and
3. when you can keep drawing to fill up the board the other requirement is too easy too, it's not really satisfying and there's no suspense of waiting to see what you'll draw next, because you'll just draw everything. So there needs to be a reason you can't just draw everything. That would be stability but that ramps up way too slowly and also, I'm not sure about stability when I saw it... Doesn't it just force you to interact with a resource? That just forces the player to do what the game says. "Sell this now or swap it out". Maybe if stability interacted with specific resources, like it could lock down areas and you need to use iron or steel to make the area usable again... I don't know, that's a tough design problem.