I’d like to recommend the game DEFCON by Introversion Software. It’s not a proper war simulation but it is an excellent game/simulation regarding the concept of

I’d like to recommend the game DEFCON by Introversion Software. It’s not a proper war simulation but it is an excellent game/simulation regarding the concept of MAD. It’s fundamentally a game where you win by not being the biggest loser. It covers the building tensions and eventual first send and even third strike nuclear warfare quite well from a simplistic high level.