This mod creates an additional Difficulty level for you to play. For most people, "Normal" difficulty aka "Prince" is way too easy. Yet playing on "King" isn't very satisfying because you know the AI is cheating with decent sized bonus's. This small mod helps fix that by adding "Duke" level which nicely balances the two. It gives the AI a bit more working room than "Prince", but doesn't cheat as bad as "King".
The nice thing about it is you know the strategy playing field (ans resources) is still going to give you realistic results, but the AI Civ's won't be so bad.
View this short you-tube video to see how to launch the game at Duke level:
This IS "Civ V mod browser" compatible.
For more information see here: http://forums.civfanatics.com/showthread.php?t=383676
Duke difficulty level - between Prince/King 2016-10-05
Duke difficulty level - between Prince/King