obtuse walrus
There could be an age right after the modern age which focuses on Cold War
… in this era the space race could be more detailed and the research into missile technology and also missile defense technology would be crucial. At the same time politics ( I suppose the culture victory ) could focus on détente and overall a diplomatic solution to the age… the economic victory could focus on defense spending and overall gdp of sorts and the martial victory could be something to do with an all out nuclear war, and the crushing victory of 1 singular ideology.
The main difference between this age and the modern would be that there are nukes from the start and that war should be really costly… so the era would encourage diplomatic cooperation… while this might be far fetched, and not the idea is not well developed, I think this would especially make multiplayer lobbies very fun and interesting
mellow apex