Hi guys, I had this issue on my very first game and I abandoned it 349 turns in. It had been a pretty experimental play through anyway so I quickly forgot and moved on. Today though as I was looking through saves for a civ with a great work to steal, for the achievement, I loaded this up again and remembered why I stopped it. I had later found out that this crash was often caused by spies being present in a captured/razed city. So I took a look at the unit list I didn't even know existed at the time and saw this: Absalom is shown as an agent with a free action but he is not present anywhere on the board. If you select him you see the following: This agent is apparently stuck. If I capture any city while he is still in my unit list the game will crash. But if I press the + and delete him, I can immediately capture a city and all is fine. I attach the relevant save game as proof that this will work for at least some people with this crash. Hopefully this can save some games for some folks.