Found an ancient KO thread (Dom2 - 2004) . So Farms would have a zero chance for a site witha zero setting but Wasteland wound have 1 1:5-ish chance. Please holler if I'm full of hooey.
-ssj
=== KO thread
http://forum.shrapnelgames.com/showt...site+frequency
Not sure of the exact numbers. I guess it works like this:
Magic: (site freq) + 30
Waste: (site freq) + 20
Swamp: (site freq) + 20
Mountain: (site freq) + 10
Forest: (site freq) + 10
Farm: (site freq) - 20
Only the most beneficial counts.
If site: Check what site. Random.
If site not possible: Reroll.
If site unique and already in the game: Reroll.
If site possible and rare: Reroll once.
Many nature sites are common but restricted to forests etc.
Unique sites are also rare or common. Inkpot end is unique and common. Crown of Darkness is rare.
No blood under water IIRC. Not sure about unholy.