The difficulty settings can be edited, and can affect the quantity of monsters in combat, the number of hit dice for each monster in combat, and the amount of experience the party receives. There are five available levels of difficulty, with the middle level affecting nothing by default.
I haven't documented any of the bonus settings yet, or much of anything actually. I'm very lazy when it comes to writing such things, but it will be done eventually.
I will check the character score generator. It used to generate 18/01-18/100, but several things have been changed lately and it must have been broken somehow.
------------------
CocoaSpud
Dungeon Craft Development Team
http://uaf.sourceforge.net