Classic Civilization gameplay polished to a fine sheen. The music, in particular, is fairly epic in scope to match your efforts. The core is the same, lead your civilization from the beginning throughout history, and try not to smeg everything up too awful. As addictive as ever.
The expansions add a few new mechanics and civilizations, and each has their own scenarios you can choose to play through. You will need to have a certain version installed to have access to the scenarios designed for it, unfortunately. Each is tuned to the appropriate mechnics and everything is generally balanced quite well,
The AI can pose a real challenge to your eventual world domination whether in scenarios or in single player matches in the randomly generated worlds. There also has been a heavy modding community for Civ, so mods and extra scenarios are readily available. Civ 5 finally seems to be catching up with the polish of its predecessor, but either can be a great time with a bit of investment. 9.0/10