I am convinced that the formula for Tourism is broken. In a sense that the formula doesn't do what the developer intended. But I can't figure it out how it work. Has anyone found it? I am sorry if someone has posted: I missed the message (send me a link if so!). It seems to follow this formula:
[Tourism boost] = 5% × [Number of enemy Civilization not exploiting the ressource] × [Number of Monopolies] × [modifier]
And that [modifier], I believe it seems to be the number of copy of the "first" monopoly in your civilization, and first seems to be quite hasardous when you don't have a monopoly on the Industry / Corporation in your Capital.
In a game, I have all monopolies at 100%:
- Continent #1: 4 types of luxuries with 9 available.
- Continent #2: 4 types of luxuries with 4 available.
- Continent #3: 4 types of luxuries with 4 available.
- Sea: 2 types of luxuries with 14 available.
- In total: I have 14 monopolies, and 14 Corporations.
Currently, my [Tourist boost] = +1890%, which is 5% × 3 × 14 × 9, so [modifier] = 9. If I take out a civilization, it drops to +1260%, which is 5% × 2 × 14 × 9. Why [modifier] = 9? I believe it is the Number of Copy of the Luxury Ressource of the Corporation from my Capital. Which makes no sense at all why it should be this way.
If I remove any improvement as long it not the Olives (Capital corporation) nor loosing the monopoly, I stay at +1890%. If I removed 1, 2 or 3 Olives, then the [Tourist boost] fall to +1680%, +1560% and +1440%. At 5/9 Olives, I do not have the Monopoly anymore, and fall to +780% (so 15% × 13 × 4). Why the [modifier] = 4 and not 5? I guess it jump to the next monopoly, which seems to be 4.
If I get the formula right, it is really really wrong:
- The 5% shouldn't increase with the number of civilization. +25% from Open Borders isn't +250% when your are playing against 10 civilizations. It means that more players are around, more quickly you are going to win the Tourism victory.
- I think the [modifier] was intended to weight the 5% down, depending how muany of the luxuries you own. But I guess it has a typo in it and instead of being [number of copy]/[total amount], it is just [number of copy]. Plus it should weight every monopolies one by one, not take one monopoly at random and apply the "weighting" to all.
I guess they will change the 5% × [Number of enemy Civilization] to 25%, and correct the formula so the weighting will no multiply your Tourism to a crazy amount. 25% is still huge: if you control one continent and all land luxuries, then you have +100% (as long you improved all luxuries). Following that correction, the +1890% from that game will be +350% instead, which is fair since I control all luxury ressources in the world and the game is over a long time ago.
The gold per turn is 25 per monopoly, weighted by the percentage you own, and rounded to the closest 5.
Edit: How 'Magnificent Catherine' is better in this mode? Sure, she gets Culture from improved luxury ressources, but her Project does not enjoy neither positive nor negative tourism modifier. It is a flat 50 Tourism per excess luxuries.