I've heard people (including my best friend) say "Why not just play Factorio?" My main reason was that I just liked the chill vibes of this game. I've learned I'm not very good at designing systems, but this game is like "That's okay, buddy. Take your time. There's nothing trying to kill you. If you mess up, just delete it and I'll give you the resources back." Very forgiving game. Biggest complaint is the "education" system point system in the game. I hope you're ready to produce millions of books. I felt like every level was a struggle to get the tech's I needed unlocked...

Took me close to 70hrs to complete the campaign mode and get the 100%, so there's plenty of game here. Honestly, even completing the campaign only scratches the surface of the "end game" buildings and tech. For me though...I just don't have any interest in designing a factory for the sake of seeing my numbers get bigger and bigger and bigger.. But maybe that is your thing?