with 2.91 i found that the republic civic has gone from one of the most useful to one of the least useful because of the change from +3 happiness to -3 happiness. even the AI seems to stay away from it now. everyone now prefers monarchy, which may or may not be intentional. monarchy should reduce army sizes due to increased unit upkeep. oh and i could not generate a giant map with the perfectworld2 script. the game would just freeze while making the map.