INTRODUCTION
============

	The following are the basic rules for role-playing in the world of 
Oneiros. While it is often said that one can use any system to play in a 
given world, I feel that there are a many features to Oneiros which make it 
difficult to use other systems. You may wish to use another system, but I 
urge you to carefully examine these rules before making the conversion - as 
there are many subtleties which may be missed. 

	My game mechanics do borrow noticeably from Ars Magica, but the 
massive changes force me to write it up as a separate game. All due credit 
and respect to the designers of AM, however. 

	To experienced players of Ars Magica: there is very little that 
remains unchanged, so beware of bringing in preconceptions about how things 
should work. Even the basics of die rolling have changed: I use only Simple 
rolls at most times, with Stress rolls being substituted only at the GM's 
discretion. 

BASIC CONCEPTS

	The Game Round is a block of time used in resolving tense or 
fast-paced action. Each round, the GM will ask the players to declare 
their actions in turn. After resolving the events of that round, the 
process will repeat. 
	A round can be any length of time, although it will generally range 
from a few seconds to a minute. In combat, though, a round is almost always 
between 4 and 6 seconds. 

	Die Rolling is generally done using a ten-sided die ('d10'), with 
zero counting as a ten. This is known as a simple roll. 
	At times, the GM will call for a 'stress roll'. In this case, ...


SCALE

	The _Scale_ rating of an object or creature is a general measure 
of its size and mass. Average Scale is 0 - which corresponds to the size 
of an adult human. 

SUBSTANCE

	The _Substance_ rating of an individual object or creature, on the 
other hand, is its size in the mind of Existance. Simple objects have little 
substance, while detailed, complex objects are greater in Substance. A rough 
guide: 

Substance:
 1	Simple Object: a knife, a blank parchment, etc. 
 2	
 3	Complex Object: a book, a detailed carriage, a painting, etc. 
 4	
 5	Average Animal
 6
 7	Stereotypic person or simpleton; Unique, complex animal
 8	Average person
 9	A distinctive character
10	A rare personage
11	A unique individual; one-of-a-kind

	The rating for most PC's will be 9, which can be modified later 
based on events. I do not think it is that unbalancing to give anyone a 
higher substance rating.