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Published by Samuel Penn.

Also, see my profile for things that interest me.

Glendale Website - My main web site.

Yags - Main site for yet another game system, a generic GPL'd tabletop RPG.

Yagsbook - Documentation on the Yagsbook RPG documentation format, a Sourceforge project.

Mapcraft - Documentation on world mapping tools, another Sourceforge project.

Midnight Saga - An Ars Magica campaign.

Active Topics

The current topics are currently under active development (relatively speaking).

Yags is Another Game System - Game design notes for Yags, a Free roleplaying game system I use as the core system for most of my campaigns.

Yagsbook - Notes on an XML based documentation system I use for documenting Yags and related campaigns.

Full Thrust - Notes on Full Thrust

Stargrunt - Notes on Stargrunt.


Samuel Penn

I'm a Java software developer living in Hampshire, England, and currently working at Perforce Software as a Java Cloud Developer. In my previous life I worked with EDMS' such as Livelink, Alfresco, Hyperwave, Documentum and FileNET. I've been working in document management for almost 15 years. Before that I studied Computer Science/AI at Edinburgh University, and prior to that I wrote various games and simulations in assembler and BBC Basic.

Hobbies include gaming (computer games, roleplaying games, wargames and boardgames), reading, managing my Linux servers and programming overly complex simulations of the universe. I have a couple of Sourceforge projects, Mapcraft and Yagsbook, an open source RPG called Yags and I wrote the Cities Mapping Project.

Other places I can be found:

Photograph collection:

Previous identities (no longer valid, but I can still be found in mailing list and Usenet archives):


Some Lists

Things I'm Doing

  • Working on my Cartexography mapping software.
  • Re-awakening by old Habisfern campaign setting.
  • Fleshing out Yags SciFi equipment lists.
  • Painting lots of Full Thrust figures.


  • - Mostly working on software to randomly generate a detailed universe for a Traveller campaign, including world maps for several hundred thousand worlds.



  • Dark Heresy, have now finished our campaign.
  • Traveller, running a Traveller game using Yags.
  • Legend of the Five Rings, playing a Unicorn battle maiden.
user/samuel_penn.txt · Last modified: 2015/02/04 22:40 (external edit)