What about introducing stability points in Orbis like in Ryhe's Rise and Fall mod? The concept is very interesting and could even be changed somehow to correspond games like Europa Universalis.
There could be a basic "consumption" of stability each turn and some actions like declaring wars or changing civics (vith a multiplier per each civic you change in one turn) would cost stability points. Happy and healthy cities, changing civics one by one each 10 turns, victories and conquests, building wonders or becoming a vassal would increase the income of stability. Losing cities, losing heroes, high difference between total happiness and unhappiness, high difference between health and unhealthiness would consume points of stability.
There could even be a branch of civics affecting stability. Otherwise it could be an xml tag available to all civics.
The accumultation of points of stability could be used to "buy" golden ages or to "buy" a decrease in inflation.
There could also be different types of golden ages: a Cultural Boom which would double culture income for X turns and give a percentual bonus to wonders building, an Age of Prosperity which would increase wealth from terrain for X turns, a Demographic boom which would increase health and give a bonus food from farms for X turns or an Age of Discovery which would give science and gpp bonus for X turns.
Lack of stability would mean increased war weariness, inflation and anarchy between changes of civics. Excessive loss of stability would mean defeat and all your cities becoming barbarian.
There could be a basic "consumption" of stability each turn and some actions like declaring wars or changing civics (vith a multiplier per each civic you change in one turn) would cost stability points. Happy and healthy cities, changing civics one by one each 10 turns, victories and conquests, building wonders or becoming a vassal would increase the income of stability. Losing cities, losing heroes, high difference between total happiness and unhappiness, high difference between health and unhealthiness would consume points of stability.
There could even be a branch of civics affecting stability. Otherwise it could be an xml tag available to all civics.
The accumultation of points of stability could be used to "buy" golden ages or to "buy" a decrease in inflation.
There could also be different types of golden ages: a Cultural Boom which would double culture income for X turns and give a percentual bonus to wonders building, an Age of Prosperity which would increase wealth from terrain for X turns, a Demographic boom which would increase health and give a bonus food from farms for X turns or an Age of Discovery which would give science and gpp bonus for X turns.
Lack of stability would mean increased war weariness, inflation and anarchy between changes of civics. Excessive loss of stability would mean defeat and all your cities becoming barbarian.