Factorio is a game about automating production lines and logistics puzzles - and it really is very good at that. If you enjoy those mechanics then it's going to be easy to lose a lot of hours to this. When it boils down to it, it's the same puzzle over and over but with more and more parts. It's not pretty, although it's extremely satisfying to automate the production of something complicated. It also has a sort of tower defence mechanic which I feel is completely out of place in a game about logistics and thinking, but thankfully you can disable the enemies. Overall, excellent gameplay and balance, definitely worth trying.