Hi! A few weeks ago i bought Civilization 4. I Patched the game and began playing a game, I found the game to be fun and enjoyable, however something has happend! I am finding that when i'm not playing the game I'm thinking about it, Tactics, wars, plans. Iv'e found this game to be extremly obsessive. Is this normal and should i start reaserching Gunpowder or economics next?