For the game Endless Legend v1.5.14 with all dlc at the moment
Endless Legend: Cheat (Fraction MOD) [1.5.14 FULL DLC] Free Download
This mod changes the mood of the faction, making it equal to + 999, due to which the mood in each city will be PATRIOTISM and will not decrease.
All details with installation and description can be found in the instructions inside the archive.
Enjoy your game everyone!