Advanced Search

Mermaids of the DepthsClick to magnify
Quick Preview
Full‑size Preview

Mermaids of the Depths

Suggested Price $4.99

Mermaids of the Depths is a transhumanist, post-apocalyptic TTRPG where the Players take on the role of aquatic-dwelling cyborgs known as Divers. Your goal is to dive into the depths of the globe-spanning ocean to discover lost artifacts, priceless technology, and forbidden knowledge from the time before the apocalyptic event known as the Deathfall. (Cosmic) horror, carefully crafted mechanics, and narrative-driven, cinematic storytelling truly make this original setting one of a kind!

Included within this offering are the following:

  • The Core Rules and Three Adventures in A4 and US Letter Formatted PDFs
  • A Reference Sheet/GM Screen
  • A printable Character Sheet
  • Script Macros for Foundry VTT
  • Errata Notes (v1.1 onwards)

Latest Update: March 18th, 2023 - v1.2 - Typo fixes and Actual Play Addition

Previous Update: March 3rd, 2023 - v1.1 - New Cyborg Frames & US Letter PDF

Recommended age: Teens and up.

This system is a part of the 2d20 World Builders program offered by Modiphius Entertainment.

An Actual Play Oneshot example can be found in the YouTube video below!

 More from this Title's Contributors
 Customers Who Bought this Title also Purchased
Reviews (0)
Discussions (1)
Customer avatar
Lambert C February 18, 2023 12:03 am UTC
This project reminds me Mermaids After The End
Customer avatar
Mike A February 18, 2023 2:12 am UTC
This is actually a reimagining/redesign of Mermaids After The End! I talk about it more in the Foreword, but basically the 2d20 system was what MATE was heavily inspired by back in 2019/2020. Now that the World Builders program is out I couldn't wait to capitalize on the chance to give the setting justice with a more well-known and easier to teach/follow system.
Browse Categories
$ to $
 Follow Your Favorites!
NotificationsSign in to get custom notifications of new products!
 Recent History

Product Information
Silver seller
Community Content
Rule System(s)
Original electronic Click for more information
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:
March 18, 2023
This title was added to our catalog on January 24, 2023.