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Primal Quest - Compatibility License


Primal Quest Compatibility License (PQCL) is a royalty-free nonexclusive agreement between Old Skull Publishing and third parties (individuals or organizations) to allow limited use of the Primal Quest™ trademark and use of the PQCL Logo visual mark (PQCL Logo) to indicate that third party products are compatible with the Primal Quest™ game, published by Old Skull Publishing.

A non-transferable, non-sublicensable, non-exclusive, royalty-free license to use the PQCL Logo on products is granted to publishers (hereafter referred to in this document as "You") as long as the requirements below are met:


1. No product can include “Primal Quest” in the title.

2. You must not use any of the Primal Quest product line trade dress for your products, or imply that your product is an official Primal Quest product release.

3. The PQCL Logo may only be used with materials published under the Creative Commons Attribution 4.0 International (CC BY 4.0) License and you must comply with the terms of the CC BY 4.0 License ( to use the PQCL Logo. The PQCL Logo is Product Identity, and cannot be used in any way that the CC BY 4.0 prohibits. You still retain all your own rights to your Product Identity under this license.

4. The PQCL  Logo may be placed prominently on exterior covers of print and electronic product covers, as well as on title/credit interior pages. For print or electronic products without covers, it must be placed on the first or last page of the product.

5. The PQCL  Logo may be placed at any size desired, but must retain the same dimensions as the standard version, and must remain legible. The PQCL Logo can be colorized, but cannot be made transparent or invisible.

6. Any use of the PQCL Logo must include the following text either in a credits/copyright section and/or in the same viewable area as the use of the PQCL Logo: “Primal Quest™ is a trademark of Diogo Nogueira.”. If mentioning Old Skull Publishing as a precursor to this then the following text must also be included: “Old Skull Publishing™ is a trademark of Diogo Nogueira.”.  The text should close with “Used with permission under license.”

7. You agree not to use the PQCL Logo in conjunction with illegal activities or any form of hate speech.

8. You agree to indemnify Old Skull Publishing against any claims made against products produced through your licensed use of the PQCL Logo.

9. You agree to allow Old Skull Publishing to use the title of your products and/or contributor names from your products communications regarding usage of the PQCL.

10. This license may be updated at any time. You agree to abide by the terms of the updated license, and will be given a window of opportunity to comply with any updated terms (this is not likely).

Complying with the above requirements allows the following:

1. You do not need explicit permission from Old Skull Publishing to use the PQCL Compatibility Logo.

2. You may indicate compatibility of your product with the Primal Quest™ Weird Stone & Sorcery Adventure Game.

3. The PQCL Logo may be used royalty-free on print and electronic products, as well as websites and advertising relating to products that fulfill the terms of this license while in compliance.

4. You may state that your product is “compatible with” any of the following: “Primal Quest”, “PQ”, or “Primal Quest - Weird Stone & Sorcery Adventure Game”.

Failure to adhere to the terms of this license may result in termination of the license and the ability to use the PQCL Logo on one or more products for individuals or organizations. If this occurs, sale of any affected products must cease immediately, and all advertising and promotional use of the PQCL Logo must stop. Destruction of existing and unsold physical inventory may be required. You must immediately suspend sale of all products using the PQCL Logo, as well as suspend all advertising and promotional use of the PQCL Logo, until your products no longer include the PQCL Logo.

The PQCL can be revoked or terminated for any reason by Old Skull Publishing. If this occurs, all products using the PQCL Logo must remove it from use within 6 months of notice.

Primal Quest Compatibility License is © Copyright 2022 Old Skull Publishing and Diogo Nogueira. Old Skull Publishing™ logo and name "Old Skull Publishing™", and "Primal Quest™", and the “Primal Quest™ Compatible” logo are trademarks of Diogo Nogueira, 2022.

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Product Information
File Size:
9.7 MB
Original electronic
Scanned image
These products were created by scanning an original printed edition. Most older books are in scanned image format because original digital layout files never existed or were no longer available from the publisher.

For PDF download editions, each page has been run through Optical Character Recognition (OCR) software to attempt to decipher the printed text. The result of this OCR process is placed invisibly behind the picture of each scanned page, to allow for text searching. However, any text in a given book set on a graphical background or in handwritten fonts would most likely not be picked up by the OCR software, and is therefore not searchable. Also, a few larger books may be resampled to fit into the system, and may not have this searchable text background.

For printed books, we have performed high-resolution scans of an original hardcopy of the book. We essentially digitally re-master the book. Unfortunately, the resulting quality of these books is not as high. It's the problem of making a copy of a copy. The text is fine for reading, but illustration work starts to run dark, pixellating and/or losing shades of grey. Moiré patterns may develop in photos. We mark clearly which print titles come from scanned image books so that you can make an informed purchase decision about the quality of what you will receive.
Original electronic format
These ebooks were created from the original electronic layout files, and therefore are fully text searchable. Also, their file size tends to be smaller than scanned image books. Most newer books are in the original electronic format. Both download and print editions of such books should be high quality.
File Last Updated:
May 02, 2022
This title was added to our catalog on May 02, 2022.