I have this problem with all paradox games, but it bothers me the most in CK because I often get crashes after 50 years of not saving. I know save often would be the obvious thing to do, but often times I am too engaged to remember saving. I also refuse to turn on auto save because the game gets slow enough as it is on fastest mode after around 50 years of hastings scenario. What can I do to avoid this late game CTDS (usually happen after 2 hours, but the game also CTDS when i manually quit the game, instead of closing normally- hope that could be an indication of the nature of my crashing problem).