Tuerny said:
So what sort of campaign world do you play/run? Is it typical middle-ages European fantasy or something different?
Tell us about it 
Don't mind if I do.
OK, lets see About Midrea (TM)
13 gates to other worlds. Humans are originally from late 20th to middle 21st century.
Cosmology including Heaven, Hell, Cuthuloid Horror, Reincarnation and Elemental Planes
Another "Human" race who aren't exactly human
A "pulp" feel to some of the northern areas
Wizard made races, Fae races lots of Fae
5 different historical periods ranging from no Arcane Magic to Ultra High Arcane Magic than No Arcane Magic Again
The main country I play in has no horses.
3 Different religions that don't compete. There are no religious wars ever except with the few evil religious cults and occasionally the one 'evilish" religions followers
No "monstrous humanoid" cannon fodder
Evil "first race"
Only one fuedal Society (well 2 ish)
Technology ranging from Steel (at the earliest as there was no Bronze Age) to Steampunk (With Trains, planes and guns) depending on the era. The High Arcane period has magic vehicles and Anthro- Armor too.
No oil and only limited coal
The world has very little climactic variation except in a few wizard made areas
Default climate in winter -- 77 degrees Farenhite (25C)-- Give or take a few degrees with variable humiditya few areas are hotter
or cooler
Lots of different monster types
I would call it weird.
If you were wondering what I was trying to do...
I wanted to mix D&D tropes, My favorite Books , Escaflowne, Fairie tales, Sword and Sorcery and "Ren Faire" Fantasy, into a single blend. That way I play any story without wrecking the versimilitude factor.
FWIW My usuall GURPS world is more normal