I play D&D 5e and sometimes come here with questions. But sometimes I see things referenced here as sources that I don't have or aren't aware of....

Which are the "official rules" for D&D 5e, and where do I find them?


1 Answer 1


Core Rulebooks

These three books form the official rulebooks for D&D5e. They are also sometimes known as the "core set" or "core books".1

The Basic Rules and SRD are both freely available subsets of the core set.1.5 They add no new rules to the core set and exist (Basic Rules) to provide a free channel to play and run games and (SRD) to support the development of third-party products.

D&D Beyond is WotC's official (though 3rd party) online source for rules. It hosts paid access to electronic copies of the core books (PHB, DMG, MM) as well as the freely accessible Basic Rules + SRD. It also hosts paid access to all official supplemental sourcebooks (e.g. Xanathar's Guide to Everything) and adventure books (e.g. Rise of Tiamat).

However, do note that D&D Beyond also hosts Unearthed Arcana, homebrew, 3rd party and other content which are not official rules sources.


Sage Advice (articles)

  • "Questions and answers about the rules of fifth edition Dungeons & Dragons appear in Sage Advice, a monthly column on the D&D website (dnd.wizards.com)." (From the introduction to the Sage Advice Compendium, a collection of all rulings issued in Sage Advice columns.3
  • Jeremy Crawford, one of the two Lead Designers of 5e and author of Sage Advice, also often answers rules questions via Twitter. His posts are often cited, then, as a source of official rulings, clarifications, and explanations. (See this post's "not official..." section, though, for some warnings.)

Supplementary publications

Wizards of the Coast has published a number of other books in 5e which fall outside of the core set. Some of these contain character options, new spells, and equipment not seen in the core set. In addition, some adventure paths featured supplemental "player's guides" which may contain new material. While not part of the "core game," these are "official" sources for rules pertaining to their contents.

  • Sourcebooks: Sword Coast Adventurer's Guide, Volo's Guide to Monsters, Xanathar's Guide to Everything, Wayfinder's Guide to Eberron (with a disclaimer that, while sold, this is still playtest material), Guildmasters' Guide to Ravnica (contains a small adventure).
  • Adventure books: Rise of Tiamat, Hoard of the Dragon Queen, Princes of the Apocalypse, Out of the Abyss, Curse of Strahd, Storm King's Thunder, Tomb of Annihilation, Waterdeep: Dragon Heist, Waterdeep: Dungeon of the Mad Mage
  • Adventurer's League Player's Guides: Rise of Tiamat Supplement, Hoard of the Dragon Queen Supplement, Elemental Evil Player's Companion4, Curse of Strahd Character Options

Not official, but sometimes mistaken for it

Unearthed Arcana are articles published by Wizards of the Coast featuring new rules or options. However, they are explicitly experimental and not official. The following disclaimer, or something like it, appears in the head-matter of most UA articles:

You can think of the material presented in this series as similar to the first wave of the fifth edition playtest. These game mechanics are in draft form, usable in your campaign but not fully tempered by playtests and design iterations. They are highly volatile and might be unstable; if you use them, be ready to rule on any issues that come up. They’re written in pencil, not ink. For these reasons, material in this column is not legal in D&D Organized Play events.

The public statements of the D&D team, or anyone else at Wizards of the Coast, are not official rulings; they are advice. One exception: the game’s rules manager, Jeremy Crawford (@JeremyECrawford), can make official rulings and usually does so in Sage Advice. (Sage Advice Compendium, emphases mine.)

So Jeremy's tweets might be official, and nobody else's are.

And now we find ourselves at the oft-cited Sage Advice twitter archive. This is an excellent resource maintained by an awesome volunteer that concatenates tweets on rules/rulings from a number of D&D developers. However the page itself tells us that it is "an unofficial site of Wizards of the Coast about Dungeons & Dragons."5 Additionally, the two Lead Designers often remind us that only rulings from Jeremy Crawford could be considered "official".6 So the material in Sage Advice (twitter) are simply statements of designer intent, with the possible exception of Jeremy Crawford's tweets carrying more weight.

The problem is, even Jeremy's tweets sometimes contradict RAW or Jeremy's other tweets. Compare two tweets on rage+heavy armor (1, 2), two tweets on cutting words (linked here), or a tweet on spirit guardians later reversed in proper SA (1, 2). There's no way for one reading even Jeremy's tweets to know whether they've (a) already been contradicted officially or (b) whether they already contradict settled rules. If Unearthed Arcana are the volatile precursors to new sourcebooks, then developer tweets--even by Jeremy--are the volatile precursors to Sage Advice articles.

To summarize: a tweet from Jeremy might be official, and no others could be. I have yet to see a tweet where Jeremy has said "this one's official" and have (personally) adopted a stance of being skeptical of all of them.

1 - It should be noted here that "if in doubt, the Monster Manual version of a creature's stat block is authoritative." (From the PHB errata) This matters in the case where a stat block appears in PHB appendix D and in the MM and they contradict.

1.5 - Interestingly, though, Jeremy Crawford has said that the SRD is not an official rules source. This comes into play on the rare occasions when the wording between SRD and corebooks isn't consistent.

2 - And it's a little trickier, because early PHB + errata isn't exactly equal to later PHB printings: some wordings aren't the same, some changes were made that aren't reflected in the errata, and at least one erratum (IIRC) isn't captured in a later printing. As a general rule, then, later printings should be held as "more" official when they conflict with earlier printings, even adjusting for errata. (With thanks to @timster for the reminder.)

3 - Through the editions Sage Advice columns have held differing stances on how "authoritative" they are in interpreting the published rules. In this edition Sage Advice rulings are held as official and authoritative, though not rising to the level of errata. (The Sage Advice Compendium contains an explanation of the distinction that is being drawn between an erratum and a clarification.)

4 - Some spells in EEPC were revised for inclusion into XGtE; the EEPC was re-released with those revisions included. If using the EEPC be sure you are using an updated version.

5 - Look near the bottom of the leftmost column. Note that this site is "of" Wizards of the Coast in the same fashion that my desk is "of" wood: the site's made of things WotC, not made by WotC.

6- Sage Advice (articles) tell us Jeremy's rulings as published in Sage Advice articles are official, and Mike Mearls himself often reminds readers that his rulings are not official but are just the rulings of one (very well-informed) GM. (Example here.)

  • 2
    \$\begingroup\$ It might be worth noting the significance of Sage Advice being official "rulings", not "rules". The difference is briefly mentioned at the beginning of the Sage Advice Compendium: "Official rulings on how to interpret rules are made here in the Sage Advice Compendium." Rulings aren't actual rules themselves, merely interpretations of them. \$\endgroup\$
    – V2Blast
    Dec 11, 2018 at 4:25
  • 6
    \$\begingroup\$ The 2019 compendium has been updated to more or less say the same about twitter as this answer already does: the SA compendium are official rulings, tweets by Crawford are not (though some of his tweets are previews of things that will become compendium entries, and still bear the extra RAI weight of being from the rules lead). \$\endgroup\$
    – CTWind
    Jan 30, 2019 at 19:38
  • \$\begingroup\$ This is kinda late, but... Isn't Crawford's tweets actually not official anymore? If it is still relevant, should that be edited into this post? \$\endgroup\$
    – Bookwyrm
    Jun 3, 2019 at 20:04
  • \$\begingroup\$ @nitsua60: Up until the 2019 SAC, the Sage Advice Compendium (e.g. 2016 SAC) explicitly said Crawford's tweets were (or could be) official rulings: "Official rulings on how to interpret unclear rules are made in Sage Advice. The public statements of the D&D team, or anyone else at Wizards of the Coast, are not official rulings; they are advice. One exception: the game’s rules manager, Jeremy Crawford (@JeremyECrawford), can make official rulings and usually does so in Sage Advice and on Twitter." \$\endgroup\$
    – V2Blast
    Mar 19, 2020 at 8:09
  • \$\begingroup\$ Obviously, the 2019 SAC changed that - see: With the 2019 Sage Advice Compendium release, are Jeremy Crawford's tweets considered to be “official rulings”? \$\endgroup\$
    – V2Blast
    Mar 19, 2020 at 8:10

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