This game is problem solving and puzzles in a way, Build and expend all you can, but remember to secure your fronts or you will pay for it! Vanilla is OK, but Factorio with mods? Holy fuck! I have games with over 100h no problems And don't turn of the enemies... Or well when you know who the game work more or less. Play the game with enemies, it forces you to rethink and not forget to protect your stuff. And with mods, the game will be more complex and sooo much more stuff to do and things to figure out. But heck, it's a lot of fun!