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How Do I use this?

Browse through the wiki and find rules you like. Then copy and paste them into your own document to create a game.

All files are tagged at the end to help you find files from the same creator or from the same system. For example, all rules from Gavin Norman's book series, B/X Essentials, are tagged "BXE." You can type that in the "Find a Page" filter to see only the rules from that series.

Contribute!

Please add your favorite house rules! Give your page a title is similar to those already here, if possible, so that it will be sorted accordingly.

Style Guide for Rules

Formulas and summary notes which are useful if you've already read. These may be copied and pasted to make a GM screen.

Full length explanation.

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Examples and advice.

Credit: Name.

Mission Statement

• Create a collection of rules documents focusing on quick and easy reference.
• Each section of the document should be broadly compatible so that it might be added to almost any OSR ruleset as seamlessly as possible. Specifically, it should be compatible with B/X and B/X Essentials.

How to use Markdown

https://www.markdownguide.org/cheat-sheet/