This section is all about unofficial documents for the SE:20 RPG System!
For more unofficial resources for the SE:20 System, check out the Aliens vs. Predator or D&D Conversions from the Fan Service page!
Converting to SE:20
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Converting to SE:20 PDF (free) This document is an unofficial guideline to converting creatures and characters from other game systems to the SE:20 RPG System. If you feel that your intellectual property rights have been infringed, please contact While this guide attempts to be thorough and accurate, it is unscientific and incomplete. Many RPG systems simply do not have analogous scores that can be directly transferred to the SE:20 system. If you have any questions or comments, please feel free to contact us via email. |
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Known Realms
This set of books focuses on fantasy worlds. We took creative liberties where applicable, but stuck close to the Dungeons & Dragons standards.
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Arms & Armour of the Known Realms PDF (free) Weapons and armor using the design rules from the SE:20 Core Rules SRD.
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Denizens of the Known Realms PDF (free) Species templates created using the SE:20 Nonhuman SRD |
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Known Universe
This set of books focuses on science fiction creatures and technology seen in various movies.
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Aliens of the Known Universe PDF (free) Species templates created using the SE:20 Nonhuman SRD |
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