GM Prep Library

Before I call a campaign system healthy, I want to see that prep is reusable, open questions are visible, and the notes help the next session start in action rather than in paperwork. If not, the campaign archive is probably serving the GM's anxiety more than the table.

Three evaluation axes to compare:
- clarity of session and campaign notes
- flexibility of the prep structure during play
- reusability of the saved GM materials

Review materials:
- Donjon generators: donjon.bin.sh/
A durable resource for names, dungeons, treasure, and procedural prompts.
- Cairn resources: cairnrpg.com/resources/
Handy for tables that want generators, references, and lightweight adventure material.
- Iron Vault source: github.com/iron-vault-plugin/iron-vault
A thoughtful open plugin for running Ironsworn and related games in Obsidian.

Save the strongest examples, scorecards, and decision memos in this folio so future teammates can see what good evaluation looked like at the time.

The debates worth having are about how much prep is enough, whether rules-light oracles reduce or deepen creativity, and how much campaign continuity should live in formal notes versus table memory. Those questions matter because they shape the feel of play, not because one side is morally superior.

Three questions worth debating:
- how much prep is enough before improvisation becomes stronger
- whether one-shots or campaigns teach better GM habits
- how much system complexity helps versus slows table flow

Background reading before you take a strong stance:
- Cairn: cairnrpg.com/
An openly licensed, beautifully clean ruleset that rewards smart prep and active play.
- Ironsworn downloads: ironswornrpg.com/downloads
Free tools and PDFs that are genuinely generous for solo or guided campaign work.
- Matt Colville video archive: youtube.com/@mcolville/videos
A durable public library of tablecraft, GMing, and adventure structure advice.

When you respond, include the environment you are optimizing for. Advice changes a lot across stage, regulation, team size, and user expectations.

A useful TTRPG pack should include one open ruleset, one free campaign toolkit, one oracle or generator suite, and one note system built for play. That gives a GM enough structure to improvise without drowning in prep.

The kinds of materials worth saving in this space:
- GM prep templates for campaigns and one-shots
- handout and NPC organization guides
- retrospectives on what keeps campaigns coherent over time

Read:
- Cairn: cairnrpg.com/
An openly licensed, beautifully clean ruleset that rewards smart prep and active play.
- Ironsworn downloads: ironswornrpg.com/downloads
Free tools and PDFs that are genuinely generous for solo or guided campaign work.
- Donjon generators: donjon.bin.sh/
A durable resource for names, dungeons, treasure, and procedural prompts.

Documents and downloadable guides:
- Cairn resources: cairnrpg.com/resources/
Handy for tables that want generators, references, and lightweight adventure material.
- Sly Flourish articles: slyflourish.com/
A strong long-running archive on prep discipline, encounter pacing, and note design.

Watch:
- Matt Colville video archive: youtube.com/@mcolville/videos
A durable public library of tablecraft, GMing, and adventure structure advice.

Build or inspect:
- Iron Vault source: github.com/iron-vault-plugin/iron-vault
A thoughtful open plugin for running Ironsworn and related games in Obsidian.
- Iron Vault docs: ironvault.quest/
Helpful if you want your campaign notes to behave more like a real play tool.

Image references:
- Dyson Logos maps archive: dysonlogos.blog/maps/
A deep public archive of maps that can kickstart prep without flattening creativity.

The most common mistake is writing setting material the players may never touch. Another is keeping campaign notes in a form that is impossible to scan mid-session, which is how prep becomes invisible right when it should be useful.

Common traps to watch:
- over-prepping fixed outcomes instead of flexible scenarios
- letting campaign notes sprawl without fast in-session access
- forgetting to update prep docs after major player choices

References that help correct the drift:
- Ironsworn downloads: ironswornrpg.com/downloads
Free tools and PDFs that are genuinely generous for solo or guided campaign work.
- Dyson Logos maps archive: dysonlogos.blog/maps/
A deep public archive of maps that can kickstart prep without flattening creativity.

This folio post is meant to be saved and revised. Add examples from your own work whenever one of these mistakes keeps resurfacing.