So me and a friend just played a game together and "lost" to the score victory condition once the game hit the last turn. We really wanted to keep on playing even if we lost. If we disable score victory, does the game just end with no winner on the last turn, or would it keep on going like we want it to? If that doesn't work is there any other way to bypass the turn limit? 

With Score Victory switched off, the game goes until another victory objective is achieved. Furthermore, on the Victory screen, you can choose the "Just one more Turn" function to keep playing.