Civilization 3 with patch 1.29 is fantastic, and amazingly stable product. I am surprised why PTW is so unstable, they must have used Civ 3 engine. I am not talking about multiplayer, but singleplayer experience of PTW is very unstable. I wonder if Firaxis will address stability of Single Player in coming patch, as it crashes frequently on my both systems, usually after diplomacy screen.

Strange! I'm playing a heavily modded Ptw and crashed only when I was testing my mod, and those crashes due to my modifications! During a normal game I haven't had a crash yet.

Firaxis did add new features to the diplomacy screen, so it is possible that there's memory leaks that have gone unnoticed...