Most players know a d20 when they see one and stop there. The Book of Dice keeps going for 107 pages: where the shapes come from, how the table talks about them, every way to roll, and why we keep coming back [1].
Full disclosure: we wrote it. We rolled for objectivity and got a 1. rpgcreator.net is ours, the same people who run this roller.
What is in it
A cold open, five parts and two appendices [1]:
| Part | What it covers |
|---|---|
| Cold open: The Table Is Set | Five adventurers, one ancient red dragon, every rule on display before any rule is named, then an on-ramp for anyone the fight just recruited |
| I. The Object | Nine solids and what each is for, the five that fairness allows, and the geometry of everything weirder |
| II. The Language | The tongue of dice, and a field guide to the superstitions every one of us pretends not to have |
| III. The Rolling | Ability scores, notation, advantage, the player's rolls against the DM's, and ten presets worth keeping |
| IV. The Hobby | The virtues of every edition from OD&D to 5.5, Pathfinder 2e against 5e, and the alternatives |
| V. The People | Why D&D heals, the five stages of character death, initiative as tempo, and a defence of rules lawyers |
| Appendices | The Directory (sixty-nine hand-checked RPG sites) and Build Your Own World |
If that list sounds familiar, several chapters started life here as posts. Try before you buy: The Five Solids, The Tongue of Dice, the superstitions field guide and Why D&D Heals. This site keeps its own hand-checked list of RPG sites at the Directory.
Nobody owns too many dice. Some of us just own too few bags.
The deal
- $19, once. No subscription, no account [1].
- A DRM-free PDF, laid out like the books already on your shelf: part dividers, drop caps, print it and bind it [1].
- The first 13 pages are free to read on the site [1].
- Later chapters reach buyers at no charge; The Book of Worlds is next [1].
Free printable booklets from this site sit on the Books page.
Free things on the same site
Three things on rpgcreator.net cost nothing and need no account [1, 2]:
- The library: nine free booklets set the same way as the book, from the editions history to How to Win.
- The character sheet: four pages that fill in the browser, work out your modifiers, autosave and print to A4. A fillable PDF version exists for people who would rather not use a browser.
- The character app: build and play a character, click any bonus to roll it.
Table Talk
Tia: Why would anyone read 107 pages about dice?
Arthur: Same reason people own more dice than they roll.
Tia: That's a joke, not a reason.
Arthur: Fine. It keeps going past the d20: where the shapes come from, how the table talks, every way to roll.
Tia: I'd start with the superstitions. Why does every one of us pretend we don't have them?
Arthur: That chapter asks the same question. I'm not answering for my lucky d20.
Tia: We should say it plainly: we wrote it and we sell it.
Arthur: Second paragraph. That's quality control.
Tia: Then don't take our word for it. Read the first 13 pages free, and the posts it grew from.
Arthur: Still want it? $19, once, no account. Don't? The character sheet is free either way.
References
- Iron Code Studios. (2026). The Book of Dice, product page. rpgcreator.net. https://rpgcreator.net/
- Iron Code Studios. (2026). The Library. rpgcreator.net. https://rpgcreator.net/library/
