Thalassicus
Bytes and Nibblers
I discovered a mistake in the formulas I used to figure out expansion costs for cities. I'm going to update the expansion costs with the new formula in v137.6, and we can tweak things further from that baseline. This might be the reason for recent questions about cultural expansion and city growth. This does not affect gold expansion. (We can't see the formulas directly because they're in the game core only Firaxis has access to.)
I assumed changing "multipliers" from 1 to 2 basically "multiplies" costs by 2. I figured out they chose a different formula:
I assumed changing "multipliers" from 1 to 2 basically "multiplies" costs by 2. I figured out they chose a different formula:
Assumed formula
constant + multiplier * (x ^ exponent)
Actual formula
constant + linear*x + 1*x^exponent
The linear coefficient is ambiguously labeled "multiplier," which is what threw me off. With the quadratic coefficient fixed at 1, it's actually impossible to "multiply" the formula by a value, which will make things harder to balance. constant + multiplier * (x ^ exponent)
Actual formula
constant + linear*x + 1*x^exponent