Woo, I won my second game VS roommate.
It started bad on fractal map with me playing as Rome, my roommate as Egypt. I started in a crappy little tundra spot at the bottom of the map, so I immediately put all my effort into making a settler to find a better spot. Sadly, Barbarians slowed my progress and by the time I got there and built a city Montezuma had already taken most of the land.
My roommate beat up American with ease and took a few other cities while I ended up in a long ass war with Montezuma that I almost lost, but managed to beat him back and eventually take all his cities. Germans and China both took advantage of this and made footholds on my continent.
My roommate was going for a Science victory(I was as well at the start), but he was so far ahead by the industrial age that I didn't have much of a chance of beating him to it. I figured I'd try my best with boosts, but then I remembered I should probably upgrade my religion (I'm a devout Worshipper of mosquitos) and at least try to convert my land. This let me learn sorta how all the religious units work. After I finally rid my land of Montezuma's Buddism, I checked to see how my science was doing. Still far far behind my roommate. New plan time.
My roommate didn't have a religion, and everyone else was essentially piggybacking off the Germans Catholicism. I decided to go for the long shot, and convert all my efforts to faith. It went very well. I managed to convert the Germans first, then the chinese. Only Spain(who was losing a war with china) and Egypt(my roomate) was left. He starts to catch on to what I'm doing, but doesn't know enough about religious victories to understand how to counter it. I managed to convert his one city that still had Catholicism and a holy site first, so he can't pump out any counter religious units.
He comes up with a plan to delay me, since his space race is starting to get closer. He's starts building settlers at all his cities, hoping he can create cities faster than I can take them over. This was actually probably a good idea, since I hadn't mapped out most of his territory and the oceans so he could probably plunk them all over the place without me knowing. Sadly for him, I managed to convert the last city I needed(and one of Spain's) to get the victory before he could get his settler anywhere.
Victory!