aieeegrunt
Emperor
- Joined
- Jan 8, 2021
- Messages
- 1,700
I think the real world gives a good baseline for a strong plague mechanic.
First, it's tied to population density (more likely to spawn in a larger city). Second, it's more likely to develop in a city the more active the city is in trade (number of trade routes running through the city, either as starting point, destination, or trading post on the route). Third, populations develop immunity after a reasonable cool off. Fourth, it can spread through trade routes or increased diplomatic contact. Fifth, it spreads most actively when active, but can spread from an immune civ to one without immunity. Sixth, multiple can spread at once from a civ or civs that have had many to one that had few. Seventh, the negatives stack when when multiple are active. Eighth, greater health infrastructure can limit some affects (mainly housing infrastructure until medical sciences are discovered). Ninth, it can mutate post immunity to recur, likely with lower negatives.
A few more aspects and you've got a robust and interesting system.
Certain government types and policies should either make it easier or harder to contain as well