[C3C] Do The Forbidden Palace OCN Effects Stack?

[SayHayKid]

With C3C the Forbidden Palace was weakened from earlier versions no longer creating a "second ring". Instead it reduces distance corruption in the city it is built to be similar to the Palace and it increases the optimal number of cities. So far so good. You can create multiple FP type buildings: Winter Palace, Summer Palace, Capitol, etc. If they no longer create new "second rings" an only really effect the corruption of the city they are built, how does that differ from the "reduce corruption in city" effect of Courthouses and Police Stations? Is the reduction of corruption in the city greater? Does the OCN continue to increase with each one thus slightly reducing corruption in all cities?

 

[Flintlock]

Yes, the effects stack. Specifically, each forbidden palace in your empire increases your OCN by 37.5% of the base rate (coming from map size) in governments without communal corruption. With communal, the OCN increase is 100% of the base rate. That's before the per-player difficulty scaling. A while back I worked out the full formula for the OCN, it's in the C3X repo here: https://github.com/maxpetul/C3X/blob/master/Notes/ocn_formula.txt. It's written in a Haskell-like pseudocode, I hope it's understandable.

Also, FPs reduce corruption slightly in nearby cities because distance corruption is measured from the capital or any FP city, whichever is closest. The reduction is slight because distance corruption usually gets swamped by rank corruption.

 

[Herbert George]

Also the in-city corruption impact is much stronger than a courthouse or police station. In the case of a maximally corrupt city, base corruption is 90%. Courthouse and police station each reduce that by 10%, and the forbidden palace brings it down by 70% (so with all three the FP city experiences no corruption, just like the capital, even if it is extremely far from the capital.