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Open Game License


The following is designated as product identity: All trademarks, registered trademarks, proper names (characters, deities, etc.), dialogue, plots, storylines, locations, characters, artworks, logos, symbols, graphic designs, and trade dress.

Autarch™, Adventure Conqueror King™, Adventurer Conqueror King System™, ACKS™ are trademarks of Autarch™.


All text and tables, with the exception of material specifically excluded in the declaration of product identity, are open game content.


The following text is the property of Wizards of the Coast, Inc. and is Copyright 2000 Wizards of the Coast, Inc. (“Wizards”). All Rights Reserved.

  1. Definitions: (a)”Contributors” means the copyright and/or trademark owners who have contributed Open Game Content; (b)”Derivative Material” means copyrighted material including derivative works and translations (including into other computer languages), potation, modification, correction, addition, extension, upgrade, improvement, compilation, abridgment or other form in which an existing work may be recast, transformed or adapted; (c) “Distribute” means to reproduce, license, rent, lease, sell, broadcast, publicly display, transmit or otherwise distribute; (d)”Open Game Content” means the game mechanic and includes the methods, procedures, processes and routines to the extent such content does not embody the Product Identity and is an enhancement over the prior art and any additional content clearly identified as Open Game Content by the Contributor, and means any work covered by this License, including translations and derivative works under copyright law, but specifically excludes Product Identity. (e) “Product Identity” means product and product line names, logos and identifying marks including trade dress; artifacts; creatures characters; stories, storylines, plots, thematic elements, dialogue, incidents, language, artwork, symbols, designs, depictions, likenesses, formats, poses, concepts, themes and graphic, photographic and other visual or audio representations; names and descriptions of characters, spells, enchantments, personalities, teams, personas, likenesses and special abilities; places, locations, environments, creatures, equipment, magical or supernatural abilities or effects, logos, symbols, or graphic designs; and any other trademark or registered trademark clearly identified as Product identity by the owner of the Product Identity, and which specifically excludes the Open Game Content; (f) “Trademark” means the logos, names, mark, sign, motto, designs that are used by a Contributor to identify itself or its products or the associated products contributed to the Open Game License by the Contributor (g) “Use”, “Used” or “Using” means to use, Distribute, copy, edit, format, modify, translate and otherwise create Derivative Material of Open Game Content. (h) “You” or “Your” means the licensee in terms of this agreement.

  2. The License: This License applies to any Open Game Content that contains a notice indicating that the Open Game Content may only be Used under and in terms of this License. You must affix such a notice to any Open Game Content that you Use. No terms may be added to or subtracted from this License except as described by the License itself. No other terms or conditions may be applied to any Open Game Content distributed using this License.

  3. Offer and Acceptance: By Using the Open Game Content You indicate Your acceptance of the terms of this License.

  4. Grant and Consideration: In consideration for agreeing to use this License, the Contributors grant You a perpetual, worldwide, royalty-free, non-exclusive license with the exact terms of this License to Use, the Open Game Content.

  5. Representation of Authority to Contribute: If You are contributing original material as Open Game Content, You represent that Your Contributions are Your original creation and/or You have sufficient rights to grant the rights conveyed by this License.

  6. Notice of License Copyright: You must update the COPYRIGHT NOTICE portion of this License to include the exact text of the COPYRIGHT NOTICE of any Open Game Content You are copying, modifying or distributing, and You must add the title, the copyright date, and the copyright holder’s name to the COPYRIGHT NOTICE of any original Open Game Content you Distribute.

  7. Use of Product Identity: You agree not to Use any Product Identity, including as an indication as to compatibility, except as expressly licensed in another, independent Agreement with the owner of each element of that Product Identity. You agree not to indicate compatibility or co-adaptability with any Trademark or Registered Trademark in conjunction with a work containing Open Game Content except as expressly licensed in another, independent Agreement with the owner of such Trademark or Registered Trademark. The use of any Product Identity in Open Game Content does not constitute a challenge to the ownership of that Product Identity. The owner of any Product Identity used in Open Game Content shall retain all rights, title and interest in and to that Product Identity.

  8. Identification: If you distribute Open Game Content You must clearly indicate which portions of the work that you are distributing are Open Game Content.

  9. Updating the License: Wizards or its designated Agents may publish updated versions of this License. You may use any authorized version of this License to copy, modify and distribute any Open Game Content originally distributed under any version of this License.

  10. Copy of this License: You MUST include a copy of this License with every copy of the Open Game Content You Distribute.

  11. Use of Contributor Credits: You may not market or advertise the Open Game Content using the name of any Contributor unless You have written permission from the Contributor to do so.

  12. Inability to Comply: If it is impossible for You to comply with any of the terms of this License with respect to some or all of the Open Game Content due to statute, judicial order, or governmental regulation then You may not Use any Open Game Material so affected.

  13. Termination: This License will terminate automatically if You fail to comply with all terms herein and fail to cure such breach within 30 days of becoming aware of the breach. All sublicenses shall survive the termination of this License.

  14. Reformation: If any provision of this License is held to be unenforceable, such provision shall be reformed only to the extent necessary to make it enforceable.


Open Game License v 1.0 Copyright 2000, Wizards of the Coast, Inc.

System Reference Document Copyright 2000, Wizards of the Coast, Inc.; Authors Jonathon Tweet, Monte Cook, Skip Williams, based on original material by E. Gary Gygax and Dave Arneson.

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, John D. Rateliff, Thomas Reid, James Wyatt, based on original material by E. Gary Gygax and Dave Arneson.

Modern System Reference Document Copyright 2002-2004, Wizards of the Coast, Inc.; Authors Bill Slavicsek, Jeff Grubb, Rich Redman, Charles Ryan, Eric Cagle, David Noonan, Stan!, Christopher Perkins, Rodney Thompson, and JD Wiker, based on material by Jonathan Tweet, Monte Cook, Skip Williams, Richard Baker, Peter Adkison, Bruce R. Cordell, John Tynes, Andy Collins, and JD Wiker.

Adventurer Conqueror King Copyright 2011, Autarch; Authors Alexander Macris, Tavis Allison, Greg Tito, and Ryan Browning.

Basic Fantasy Role-Playing Game Copyright 2006-2008, Chris Gonnerman.

Castles & Crusades: Players Handbook Copyright 2004, Troll Lord Games; Authors Davis Chenault and Mac Golden.

Castles & Crusades: Monsters Product Support Copyright 2005, Troll Lord Games.

Labyrinth Lord™ Copyright 2007-2009, Daniel Proctor; Author Daniel Proctor.

Labyrinth Lord™ Advanced Edition Companion Copyright 2010, Daniel Proctor; Author Daniel Proctor.

Ankheg from the Basic Fantasy Field Guide Copyright 2010, Chris Gonnerman and Contributors, based on original material by Gary Gygax.

Cave Cricket from the Tome of Horrors Copyright 2002, Necromancer Games, Inc.; Authors Scott Greene and Clark Peterson, based on original material by Gary Gygax.

Crab, Monstrous from the Tome of Horrors Copyright 2002, Necromancer Games, Inc.; Author Scott Greene, based on original material by Gary Gygax.

Fly, Giant from the Tome of Horrors Copyright 2002, Necromancer Games, Inc.; Author Scott Greene, based on original material by Gary Gygax.

Golem, Wood from the Tome of Horrors, copyright 2002, Necromancer Games, Inc.; Authors Scott Greene and Patrick Lawinger.

Rot Grub from the Tome of Horrors Copyright 2002, Necromancer Games, Inc.; Authors Scott Greene and Clark Peterson, based on original material by Gary Gygax.



Subject to the terms of the Open Game License, above, you may create derivative works based upon the Adventurer Conqueror King System (this document). However, the Open Game License protects the Product Identity (explained and detailed above) such that you must have permission from the copyright holder before you may use any of the listed Product Identity.

You may use certain items of the listed Product Identity under the following conditions:

  1. You must comply fully with the Open Game License, version 1.0a, as described above; and

  2. The work may not be obscene in nature; in general, any work containing subject matter that would qualify for an NC-17 movie rating in the United States, or an R rating due to explicit sexual content, is considered obscene for purposes of this license.

If you comply with the above conditions, you may do either or both of the following:

  1. Include the text “Designed for use with the Adventurer Conqueror King System”

  2. Use the “ACKS Compatible” logo, provided on the Adventurer Conqueror King System website:

    The logo may be resized as needed, but must not be distorted and may not be altered other than to resize it.

  3. Use the product identity elements “Autarch”, “Adventurer Conqueror King”, “Adventurer Conqueror King System”, and “ACKS” for the purposes of identifying the source of open content which is re-used from this document and discussing the relationship of the derivative work to this original, subject to the following terms:

    a. Any work making use of these elements must designate these elements as product identity in accordance with section 1(e) of the Open Game License version 1.0a;

    b. Any work making use of these elements must bear a notice declaring the fact that Autarch, Adventurer Conqueror King, Adventurer Conqueror King System, and ACKS are trademarks of Autarch.

If you wish to use other Product Identity from this work, you must request and receive explicit permission from the copyright holder.

In any of the above cases where the Adventurer Conqueror King Product Identity is used in your work, you must also include the Adventurer Conqueror King website address “” in that work. You may place the website address adjacent to the logo and/or name, or you may include it on your title page, or place it in some other location where any reasonably observant person would expect to find it.