You should take a look at satisfactory[0] if you haven't already. It's not (quite) as deep as factorio, but the game world is absolutely beautiful and immersive, and it's still in early access so new content is constantly arriving.I personally had to ban it because I played it for 300 hours in less than three weeks. I literally could not get myself to stop playing (until I did). :)
As long as you're immediately understanding, you'll continue to have fun.
As soon as you need to stop and research to understand what it is that you need to do next, and then start to re-architect a bunch of things, you may or may not realise this is the same thing you do for a living.
Nothing quite like burning the candle at both ends, for fun and profit.
Personally, it's not for me. Others (including some of my colleagues) definitely do not share that sentiment.
That said, I enjoyed Mindustry for a similar period too. Factorio-lite tower-defence game.