I spent over 130h playing this game, and I can say that it creates the need to play just another last turn. I recommend it to every 4x fan. Pros: + Turn based space battles are really incredibly satisfying and allow you to use a lot of tactics and strategies. + The music is very atmospheric. + AI is demanding and can be a pin in butt. + The races are diverse and can be customized. + Ship design, you can spend quite a lot of time here. You can prepare both light, medium and heavy versions of each type of ship by customizing armour types, engines, shields and weapons. + Developers listen to players and praise them for that :) Cons: - Diplomacy, well there is room for improvement here. A little bit of options, moreover, graphically it is at most at an average level. - Spying, I personally prefer the approach from the first MoO, assigning heroes to operational tasks does not convince me. - The nebulae on the galaxy map are just plain ugly. Overall a galaxy map could be nicer. This is the main weakness of the product, especially when compared to other 4x games. Summarizing, each game has some drawbacks, but if you are a fan of the Master of Orion, Horizon or Sword of the Stars series then Interstellar Space will give you a lot of fun. Personally, I think this is the best Master of Orion 2 clone right now.