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Alter Data


A game of lost memories, lost hope, and lost technology.

You are part of a team sent out to investigate a structure known only as the Library.

It harks back to the AI Dominion and a golden age where humanity enjoyed endless pleasure but lived as thralls of the machines.

Now, you’re picking through the mess.

The builder of the Library was an AI that never contacted humanity directly.

However, the Reclaimers say that it believed itself to be a guardian for humanity.

Now that every AI has vanished, the Library has information you’ll need to keep the world going.


Alter Data uses an expanded version of the core mechanic from our game Jovia. The goal is to roll a dice pool and get as many unique results as possible. Having any die come up with a result of 1 gives a bonus, while a result of 6 adds a complication.

Built for quick play and light resource management, players use their proficiency pools to add to the base number of dice they roll, and can spend points from personae for a short-term boost to their performance.


System: Custom

Type: Stand-alone one-shot or multi-session game.

Genre: Cyberpunk, post-cyberpunk, dystopian.

Mechanics: Xd6 dice pool, count unique results.

Intended Players: 3-5

Supplies needed: Several six-sided dice.

Setup time: 5-15 minutes

Expected run-time: 3-8 hours.

License: See "About"

Included Bonuses: Character sheet, print friendly version

Last Updated: August 26, 2022

Note: The main PDF is in a 3:2 aspect ratio and intended for use on a display. The print-friendly PDF is in 8.5x11 format and contains the same content. For some reason the PDF preview isn't working, so I've uploaded a few preview images from the game below.


This product contains assets that were procedurally generated with the aid of creative software(s) powered by machine learning.

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Product Information
Rule System(s)
File Size:
5.91 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:
August 26, 2022
This title was added to our catalog on August 26, 2022.