![RPG-modalities-and-variants-scheme-hierarchal-diagram-20181204e-p1.gif RPG-modalities-and-variants-scheme-hierarchal-diagram-20181204e-p1.gif](https://w3.rpgresearch.com/research/archives/public/rpg-research/diagrams/rpg-modalities-and-variants-scheme-hierarchal-diagram-20181204e-p1.gif/@@images/328954a9-994f-448b-b89e-ca883850a4b3.png)
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by Hawke Robinson
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last modified
Dec 05, 2018 01:57 PM
1-page summary and application to role-playing games based on Avedon's 1974 book, summary created by W.A. Hawkes-Robinson
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