I don't know if I'm alone, but I always consider myself to have won a game only if I achieve one of the victory conditions, and in addition judge that my Empire is sustainable. This means I may quit the game once I've launched the spaceship, etc., or I may continue playing, sometimes for hundreds of turns.
For example, if I am on the winning side of history, sharing the world ideology, being hated by only 2-3 civs and being friends or friendly with the rest, then I stop playing once I have achieved one of the victory conditions.
On the other extreme, once as Venice, I was able to launch the spaceship, but I was one of only two Freedom empires, there was another AI following Order, and the rest were all Autocracy and because of Gunboat diplomacy they were dominating the UN. Trade embargo on me (ouch) and on city states (ouch) as well as three of my luxury resources (ouch again). This was on Immortal, BNW, standard speed. Probably the best game the AI has pulled off, of the games I have played. So despite having won the science race (6 turns before the Shoshone would have won the UN vote), I continued playing until I could tell my Venitian empire was stable. What followed was about 150 turns of modern warfare (although not a single nuke!), where I would take out the Shoshone's main cities, rush to another continent to defend Arabia (the other Freedom empire) against Askia (another Autocrat superpower). Until they embargoed the city states, I had my vast navy of 20-something missile cruisers patrolling my shipping lanes, etc etc. The most immersive military game I have played. After 150 turns, I could claim a Pyrrhic victory. Despite the difficulties and military upkeep costs, my happiness was low but stable, my economy was doing okay and my military could defend me and Arabia. So I called it a game and considered myself truly victorious.
Anyone else obsessing with long-term stability?
For example, if I am on the winning side of history, sharing the world ideology, being hated by only 2-3 civs and being friends or friendly with the rest, then I stop playing once I have achieved one of the victory conditions.
On the other extreme, once as Venice, I was able to launch the spaceship, but I was one of only two Freedom empires, there was another AI following Order, and the rest were all Autocracy and because of Gunboat diplomacy they were dominating the UN. Trade embargo on me (ouch) and on city states (ouch) as well as three of my luxury resources (ouch again). This was on Immortal, BNW, standard speed. Probably the best game the AI has pulled off, of the games I have played. So despite having won the science race (6 turns before the Shoshone would have won the UN vote), I continued playing until I could tell my Venitian empire was stable. What followed was about 150 turns of modern warfare (although not a single nuke!), where I would take out the Shoshone's main cities, rush to another continent to defend Arabia (the other Freedom empire) against Askia (another Autocrat superpower). Until they embargoed the city states, I had my vast navy of 20-something missile cruisers patrolling my shipping lanes, etc etc. The most immersive military game I have played. After 150 turns, I could claim a Pyrrhic victory. Despite the difficulties and military upkeep costs, my happiness was low but stable, my economy was doing okay and my military could defend me and Arabia. So I called it a game and considered myself truly victorious.
Anyone else obsessing with long-term stability?