Galactic Civilzation takes a different spin with "civ" games.
This game offers so much content in terms of making decisions, upgrading your ships and such. upgrading technology which impacts how the game is played. You can even create your own Civilization, however the downside is that you have to use template portraits of galactic leaders both big and small.
The AI is very well done, you can really see the differences between the lowest diffculty setting to the highest. However, the downside is that it will either handicap them or the player. depending upon what setting you want to go with. The combat system is pretty straight forward "The more capable you are, the better results".
Also this game offers an indirect warning to players "don't expand too early or quickly" sure it will help your civilization get resources and such. But however you have to constantly manage the planets you colonize and later on, as the game progresses it will become incresingly diffcult to do anything.
Events in the game are usually recycled or "important" events but they either happen once or not at all. The story mode is pretty good for a space game, but by the end of it all, you just want to play the game itself and not any story
Lastly, there are no mods for this game, no matter what anyone tells you.
I would recommend this game for players who love civilzation games and love space games