Afterword

Oath-Bound is an opinionated place. The rules that govern it reflect specific choices about what a campaign should feel like, how fiction and mechanics should relate to each other, and what kind of table experience is worth building toward. Those choices are not universal truths. They are one Game Master’s (GM’s) answers to questions that every GM answers differently.

The consequences of that are straightforward. If you find the Oath-Bound rules useful as a whole, use them as a whole. If parts of them serve your table and parts do not, take the parts that serve you and discard the rest. If the underlying Advanced Dungeons & Dragons 1st Edition (AD&D) rules suit your campaign better than anything here, the Advanced Dungeons & Dragons 1st Edition Dungeon Master’s Guide (DMG) is still on the shelf.

Nothing in this website should be read as an argument that there is one correct way to run this game. The correct way to run this game is the way that produces rewarding play at your table. Oath-Bound is an existence proof of one approach, not a prescription.

Oath-Bound is a fully realized game world — a canvas large enough to contain many campaigns. Under Oath is the first. It occupies a bounded region of that canvas — geographically, culturally, and chronologically. The rest of the world is unwritten. Other GMs who find the setting and its rules useful should feel free to stake a claim to that territory, run their own campaigns within it, and make their own opinionated decisions about what the rules mean at their tables. The world’s canvas is big enough, and the rules are mutable.

The d100 resolution system is worth singling out as a specific example of this. It is the most structurally significant departure from the base rules and the most likely candidate for rejection at any given table. A GM who declines percentile resolution loses nothing of the world, the fiction, or the larger mechanical framework — those travel independently. The accommodations required are minor. If d100 is the one thing that stands between you and using Oath-Bound, set it aside.

The rules exist purely to serve the fiction. The decisions recorded in the Advanced Dungeons & Dragons 1st Edition Dungeon Master’s Guide Overlay (DMGO) were not made casually. They were made because the game demanded them, because the world required them, or because decades of play had produced convictions that needed somewhere to live. The Oath-Bound Rules Module (CRM) is where those convictions now live in full. Whether they are useful to you is for you to judge.

That they are genuine is the only thing I can promise.

The world is available to you. So are its rules, in whatever form they are useful.

— Mogadon, May 2026