This is the latest Civilisation game and the sequel to the highly successful Civilization 5.
Is available to play on Windows and Mac
Give it a go I reckon, might make a good Saturday night after the socceroos win :)
There is also a good deal on Civ: Beyond Earth classics edition which includes CIV 3 Complete, 4, 5 and Beyond Earth for $55USD.
There's already a free demo available. I downloaded it a few weeks ago and tried it out but the game isn't my cup of tea… overly complicated with a seemingly large learning curve. I didn't have the patience. Loved Master of Orion though.