Open Game License v 1.0a Copyright 2000, Wizards of the Coast, Inc.
System Reference Document Copyright 2000, Wizards of the Coast, Inc.; Authors Jonathan Tweet, Monte Cook, Skip Williams, based on original material by E. Gary Gygax and Dave Arneson;
Modern System Reference Document Copyright 2002, Wizards of the Coast, Inc.; Authors Bill Slavicsek, Jeff Grubb, Rich Redman, Charles Ryan, based on material by Jonathan Tweet, Monte Cook, Skip Williams, Richard Baker, Peter Adkison, Bruce R. Cordell, John Tynes, Andy Collins, and JD Wiker.
System Reference Document Copyright 2000-2003, Wizards of the Coast, Inc.; Authors Jonathan Tweet, Monte Cook, Skip Williams, Rich baker, Andy Collins, David noonan, Rich Redman, Bruce R. Cordell, based on original material by E. Gary Gygax and Dave Arneson.
CORE Explanatory Notice, copyright 2003, Benjamin R. Durbin.
Spycraft Copyright 2002, Alderac Entertainment Group.
Swords of Our Fathers Copyright 2003, The Game Mechanics.
Mutants and Masterminds Copyright 2002, Green Ronin Publishing.
Unearthed Arcana Copyright 2004, Wizards of the Coast, Inc.; Andy Collins, Jesse Decker, David Noonan, Rich Redman.
Ultramodern Firearms d20, Copyright 2002, Charles McManus Ryan.
Modern Players Companion, Copyright 2003, The Game Mechanics, Inc.; Author: Stan!
Challenging Challenge Ratings: Immortals Handbook, Copyright 2003, Craig Cochrane.
Encountering Encounter Levels: Immortals Handbook, Copyright 2003, Craig Cochrane.
Design Parameters: Immortals Handbook, Copyright 2003, Craig Cochrane.
A Magical Medieval Society: Western Europe Copyright 2003, Expeditious Retreat Press; authors Suzi Yee and Joseph Browning.
Monsters Handbook Copyright 2002, Fantasy Flight Publishing, Inc.
Monte Cooks Arcana Unearthed, Copyright 2003, Monte J. Cook. All rights reserved.
Possessors: Children of the Outer Gods Copyright 2003, Philip Reed and Christopher Shy, www.philipjreed.com and www.studioronin.com.
Vilstrak from the Tome of Horrors, Copyright 2002, Necromancer Games., Inc.; Author Scott Greene, based on original material by Gary Gygax.
Grim Tales, Spellcasting game mechanics; Copyright 2003, Benjamin R. Durbin, published by Bad Axe Games, LLC.
Grim Tales, Horror game mechanics; Copyright 2003, Benjamin R. Durbin, published by Bad Axe Games, LLC.
Grim Tales, Firearms game mechanics; Copyright 2003, Benjamin R. Durbin, published by Bad Axe Games, LLC.
Grim Tales, Vehicle game mechanics; Copyright 2003, Benjamin R. Durbin, published by Bad Axe Games, LLC.
Grim Tales, Cyberware game mechanics; Copyright 2003, Benjamin R. Durbin, published by Bad Axe Games, LLC.
Grim Tales, Copyright 2004, Benjamin R. Durbin, published by Bad Axe Games, LLC.