As you continue to develop the game I'd suggest you make sure the features you add are always accompanying some interesting feature expansion - one thing that always struck me as odd in Satisfactory was the inclusion of combat - you, the player, interact with enemies only when exploring the world and it adds relatively boring stress - it isn't and doesn't try to be combat focused (like factorio where the factory exists, for a long time, solely to better defend the factory) instead it's a smattering of FPS gameplay in an otherwise unrelated feeling game. So, you need to sort of choose between gameplay or simulation focused - EU4 might be an example you're familiar with where the earliest iterations were strongly focused on simulation with flavor events driving most of the gameplay... and, over time, it has shifted to focus more and more on fair mechanisms - it still has very rich feeling flavor, but the flavor is always secondary to the gameplay. Choosing to focus on either mechanics or flavor and seeing the other as a bonus that will enrich the experience is extremely valuable.

Congrats on the game! I've played maybe five hours of it last night and look forward to learning more of it.