Sid Meier's Civilization II
Patches
There are several different versions of Civilization II, and each has it's own separate patch.
If you have the original Sid Meier's Civilization II, download the v2.42 patch
If you have Sid Meier's Civilization II: Multiplayer Gold Edition, download the v1.3 patch
If you have Civilization II: Test of Time, download the Test of Time v1.1 patch. You will need this patch if you want to play any of the fan made scenarios, or you will get the message 'Failed to load game: file is in obsolete format'.
The versions of Civilization II included with Civilization Chronicles are not updated to the latest version, and the official patches have problems working with them. This unofficial patch was made so that the Chronicles versions of Civilization II can be updated to the latest version.