Civ IV, two months ago, 2 am. I control the North American continent with an iron as a facist-mega capitalistic USA on Prince difficulty 18 civs scenario. The Aztecs had been beaten back in an epic war earlier in history. Europe and Asia are constrained in series' of alliances and false wars that I could not be bothered with. They had Riflemen, I had Modern Armor. India demands land, a lot of it in the South Pacific. This would not do. I go to Alt-click on India's name to take over the petty country, and in a series of alliances and military doctrines, effectively declare war on the rest of the world, excluding my vassal Mexico.
What follows was the most intense experience I've ever had in a video game, the conquest of the WORLD, the fact is was an Earth map just made it hit home all the more, especially when the battles with a souped-up China brought me to drop my entire nuclear payload on the world's capitals.
Epic.
-Chillz