I've got a group of friends playing Civ with me since the game since Gods & Kings' release. I really enjoy playing with them, but there's one issue overall. It turns out we're all Builders. We don't focus on military at all. We leave each others alone, and we feel bad for attacking anyone. If there's occasions to win, we'll often delay the victory just to enjoy the end of the tech tree. Now this is fun for us, but y'know, I feel like we're not enjoying the game as it should be. We're not skirmishing each others, we don't capture PC cities... I'd like to change that a bit, spice things up, open their horizons, maybe, but not too brutally. We usually play Standard maps on continents, half Human players on Prince, half AIs. Anyone could give me tips on how to improve our experience?