I think Stardock did a fantastic job for GC2 in it's time, because nowadays 3D graphics is the norm. Back when MOO2 was the reigning turn based space civ game, 3D was in its early stages. There's a bit more features in GC2, but not a whole lot. Some graphics in MOO2 is still better than GC2, because it's 2D. I can still play MOO2 any day but of course would to try something different now. The features I like for GC2:
*good/neutral/evil decision making - making the game a bit spicy and makes it run in line with your ethics...
*upgrade starbase - a bit of a chore, but you have lots of choice how strong your starbase to be.
*3D ship design - people with good imagination will have fun at this.
*customizable race, race name, leader name, face, symbol, abilities, appearance. lot's of personal tastes. you can also customize number of computer opponents, their difficulty settings (knowledge/relations)
*Influence - this is like cultural power in Civ3/4
*music is mp3, you can change it to your own mp3 but have to rename the mp3s... keep back up of original.
*like MOO2 system requirements not a big deal. I don't know at Gigantic map, because in MOO2, the gigantic map can be slow at end turn if almost all of the planets are occupied. But again, my computer is more advanced now compared to when I was playing MOO2.
*I like the map of earth on the planet earth as Terran, where I can place different buildings/industry on any green square on the planet map - this is like designating a large region on earth to specialize in providing a type of planetary/civilization benefit/ability.
*The GC2/Collector's Edition desktop theme is great. My windows XP desktop looks so cool. I strongly recommend this if you like a different taste/theme for your win desktop. Just get latest patch first before you install this extra.
Things that could make GC2 a little better:
*technology tree research points? There's no research points per technology, or are they all the same at the same level?
*Hall of Fame at main menu missing
*the Main Theme music is weird with the lady-like singing. The trumpet/trombone music is cool, like a grand welcome to galactic leader, but when the lady voice entered, it's like, no this is just an opera play. Is there a better them song MP3?
*I like the idea in MOO2 that you can drag & drop the workes, scientists and farmers to different occupation fields to reduce or boost production in that field.
*Also in MOO2, the appearance of workers, scientists, farmers are unique for each race, there's not even an race avatar in GC2 when reporting technological breakthrough, or survey discoveries.
*diplomacy screen, not easy interface, there's no option to make peace, trade, non-agression, alliance, break treaty etc... Or may because there's no such thing here GC2?
*espionage, there's no specific task of, sabotage economy, steal tech, insite rebellion, etc... like in MOO2
Again I'm quite new with this just bought it 2 days ago. So this is just initial observation. So maybe I still have to discover a lot in the game. Even if I miss some features from MOO2, I still think GC2 is a fantastic game , a unique game on it's own, and I will enjoy it like playing MOO2, it's been a while. Good Luck playing .