Ok, yesterday I had a long discussion with my wife (I play RoM with her in hotsead mode at the moment - hoping it will work til the end) about how a game often ends. This is almost the same I guess for single and multiplayer games. What happens if you're not winning but you notice that someone (ai or another human player in MP) is about to win and you can do something about it? Better, what CAN you do to stop him/her? If the victory your opponent is about to reach is not Conquest or Domination (there's little you can do in this case, I think) or Diplomatic (from my experience this is often unexpected), my point is that the only way to stop your opponent from reaching a cultural, time or space race victory is throwing at him/her every nuke you have and to conduct an all out assault. That's what I actually did last year in my only long MP game with RoM with E_Pluribus_Unum: I nuked him and conquered his capital to stop his spaceship, nuked 3 other civs and razed their cities which were reaching legendary culture and nuked and captured the capital of another civ to stop their spaceship too, allowing my spaceship to reach its destination first and then winning the game. So, is there any other option you will follow to win the game? My point is that almost every game could end in a nuclear war: if the player that isn't winning has the chance to nuke the (almost) winner, why should he stop? The point is that there's no reason not to use nuclear weapons at the end of the game if they can help your victory and the reason is that the game WILL end anyway and you don't have to live in a radioactive world (that's one reason why they're not used in real world, I suppose: real world doesn't "end" like a civ game and you still have to live with the consequences of what you do!). So my question is: if you think you can prevent someone else from winning using nuclear weapons, do you use them? And then the logical consequence is: is there a way to make nuclear weapons less attractive to use at the end of a game? I'm curious, what's your opinion?