When choosing a game system to write for, you need to understand the licensing of that game system.
Whilst many games have ‘Community Content Programmes‘ on sites like DriveThruRPG, those programmes are designed to publish for that game system solely on that platform. In other words, we cannot use those licenses in a multi-system product.
To help navigate this Sea of SRDs we have compiled a list of those we know about, and where appropriate we have also included any licenses associated. What follows is a working list from a variety of publishers of all sizes.
So wait, does that mean that content for games like Delta Green, Night’s Black Agents, Runequest and Savage Worlds can’t be published in Polyhedral Magazine?
Not quite.
- If content is about those games, e.g. reviews, articles about how you prepped to run a campaign for that system or basically anything that doesn’t involve creating content FOR that game. In that case, we can publish that.
- If content is an adventure or something that builds on the existing system, e.g. new monsters / items with the information presented using the mechanics or Intellectual Properties of that system. In that case, we currently cannot publish that without using a specific license to do so.
- 13th Age SRD: https://pelgranepress.com/2013/10/24/the-archmage-engine-13th-age-srd/ and https://pelgranepress.com/2014/02/19/13th-age-compatibility-license/
- Agon / Paragon System SRD: https://johnharper.itch.io/agon
- Basic Fantasy: https://www.basicfantasy.org/index.html
- Basic Roleplaying SRD: https://www.chaosium.com/brp-system-reference-document/
- Blades in the Dark / Forged in the Dark: https://bladesinthedark.com/licensing
- Cepheus Engine: https://www.drivethrurpg.com/en/product/186894/cepheus-engine-system-reference-document
- Cities Without Number RPG: https://www.drivethrurpg.com/en/product/452790/cities-without-number-system-reference-document
- Cypher System Open License: https://www.montecookgames.com/cypher-system-open-license/
- Death In Space Third Party License: https://deathinspace.com/third-party-license/
- Dungeon / Mutant Crawl Classics: https://goodman-games.com/third-party-publisher-hub/
- Dungeons & Dragons 5th Edition SRD Creative Commons: https://www.dndbeyond.com/srd
- Dungeons & Dragons 4th Edition Game System License (Wayback Machine): http://www.wizards.com/d20/files/GSL_20080617.pdf
- Dungeons & Dragons / d20 OGL(s)
3e v1.0a – just the license: https://opengamingfoundation.org/ogl.html
3.5e SRD: https://www.dandwiki.com/wiki/SRD:System_Reference_Document
d20 Modern SRD: https://www.dandwiki.com/wiki/MSRD:Modern_System_Reference_Document
5e v1.1 (includes SRD): Microsoft Word – SRD-OGL_V1.docx - Fari RPGs SRDs: https://farirpgs.com/srds
- Fate SRD: https://fate-srd.com/official-licensing-fate
- Gumshoe SRD: https://pelgranepress.com/2013/10/24/the-gumshoe-system-reference-document/
- Index Card RPG: https://icrpgcommunitycontent.com/
- Into The Odd / Mark Of The Odd: https://www.bastionland.com/2020/11/mark-of-odd-licence-and-srd.html
- Ironsworn SRD: https://www.ironswornrpg.com/licensing
- Knave 2e Creator Kit: https://questingblog.com/knave-2e-creator-kit/
- Lancer: https://massif-press.netlify.app/legal
- Lasers & Feelings: https://johnharper.itch.io/lasers-feelings/devlog/229726/lasers-feelings-updated-license
- Legacy SRD (UFO Press): https://ufopress.co.uk/the-world-of-legacy-srd/
- LevelUp A5E SRD: https://a5esrd.com/a5esrd
- LUMEN SRD: https://gilarpgs.itch.io/lumen
- Mausritter Third Party License: https://mausritter.com/third-party-licence/
- Modipius’ 2d20 SRD: https://www.modiphius.net/pages/2d20worldbuilders
- MORK BORG: https://morkborg.com/license/
- Mothership: https://tuesdayknightgames.zendesk.com/hc/en-us/articles/4412576594843-How-can-I-create-third-party-licensed-content-for-Mothership-
- NewEdo RPG: https://salty-games.com/en-gb/pages/3pl
- Old-School Essentials: https://oldschoolessentials.necroticgnome.com/srd/index.php/Main_Page
- Open D6 SRD: http://opend6project.org/
- Paizo ORC License: https://paizo.com/orclicense
- Pirate BORG: https://www.limithron.com/license
- Powered By The Apocalypse: https://lumpley.games/2023/11/22/what-is-pbta/
- QuestWorlds SRD: https://www.chaosium.com/questworlds-system-reference-document/
- Resistance Toolbox (Rowan, Rook & Decard): https://rowanrookanddecard.com/rrd-community-licence/
- Retrospective Games SRD: https://planesailinggames.com/games/retrospective-srd/
- Runecairn Third Party License: https://runecairn.byodinsbeardrpg.com/licence/
- Shadowdark Third-Party License: https://www.thearcanelibrary.com/blogs/shadowdark-blog/faq-on-the-shadowdark-rpg-third-party-license
- SoulMuppet (Best Left Buried & Orbital Blues): https://soulmuppet-store.co.uk/pages/the-soulmuppet-license
- The Black Hack: https://the-black-hack.jehaisleprintemps.net/license.html
- Troika: https://melsonian-arts-council.itch.io/troika-numinous-edition/devlog/104412/srd
- Trophy: https://trophyrpg.com/system/
- vs Monsters Engine SRD: https://stream-monk.itch.io/vs-m-engine-srd
- We Deal In Lead Third Party License: https://lead.byodinsbeardrpg.com/licence/
- Year Zero Engine Free Tabletop License (FTL) (Free League Publishing): https://freeleaguepublishing.com/community-content/free-tabletop-licenses/
- ZWEIHÄNDER Third Party License: https://sllswrd.games/license
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