The multiple victory conditions in civ have always bothered me. For one, it's hard to make sure the victory conditions are equal. For example, who can tell if the science victory requires the same amount of effort and time as the culture victory in a particular game? As a result, some civs will have an easier time winning than others based on what victory condition they are pushing for. Basically, the victory conditions are like separate railroad tracks where each civ is a train on its own track and each track is a different length. Each civ is not really competing with the other civs, they are just playing their own separate mini-game and seeing who can finish it first but each mini-game is not the same difficulty level. I would much prefer a civ game with only 1 victory condition so that each civ is truly competing for the same goal and same prize. Of course, this victory condition should encapsulate the different playing styles and relate to the empire building theme of the civ franchise. My idea would be to have each era have "victory goals" that award "victory points". This could fit into the era system of Rise & Fall. There would be victory points for every aspect of the game from building cities (wide), to getting a lot of population (tall) to building wonders, to getting Great Works, to discovering a new continent, to having trade routes, to mining strategic resources, to being a suzerain to a city state etc... So players could win with lots of different play styles. Basically, you would play until the end of the game and whichever civ has the most "victory points" would be declared the greatest civ in history. I would also award more points in latter eras so that civs that are behind could catch up in the end game. This would make the end game more interesting since civs who are behind could potentially win at the last moment. For example, a civ that is in 2nd place might pull off a last minute victory by achieving several victory goals in the information era. You would not be able to assume that just because you are in the lead in the renaissance era that you are going to cruise to victory.