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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.



Some more stuff on experience. See also: Training and Experience.

This is a complex subject, so I'm unsure how to proceed. I don't like the 'gain X xp per session' type of systems, they feel too clunky. The 'train in anything you want' during down time can be abused.


  • Shouldn't penalise characters with low attributes. It makes sense to do so, but it means it makes min-max sense to take high attributes/low skills at the start, then claw back the skill points during the game.
  • Easy to get 1 or 2 points in an unskilled skill that has been used.
  • Hard to get very high skills in short periods of time. Try and match real world where possible.
  • Techniques an easier option.


In Game

If you use a skill you have no skill in during a session, and there's a chance that you learnt something, then gain 1 XP.

If you use a skill in a way that stretches your ability in it, then gain 1 XP.

Languages and Area Lore

For language/area skills, you may pick up points if you're in an environment where there is an opportunity to learn, e.g. amongst people who are all speaking the language.

Current Gain 1 XP per
0-1 Week
2-3 Month
4+ -

Roll a d20 each time period, on 10+ you gain 1 XP.


On The Job

If it's your job, you can pick up a skill as follows. Roll a d20 each time period, on 10+ you gain 1 XP.

Current Gain 1 XP per
0-1 Week
2-3 Month
4+ -

Only one skill at a time, if multiple skills are applicable, choose the lowest.

If a familiarity technique is applicable, then you gain an automatic 1XP/week on that familiarity instead if your skill is high enough.


Dedicated training can be quicker, and is the only way to get skills above 4.

yags/experience.txt · Last modified: 2015/02/04 22:40 (external edit)