What’s included in D&D’s latest release, Ravenloft: The Horrors Within?

Though the weather may be bright and sunny as summer approaches, the pages on the Dungeons & Dragons calendar have turned, revealing the first of three themed seasons for 2026 releases: the Season of Horror, with the release of Ravenloft: The Horrors Within. (Just avoid windows and imagine the creeping mists.)

This 288-page tome includes character options, settings, and creature stat blocks to help you create or enhance the macabre adventures that you may want to undertake with your friends. While it’s more likely that you’ll find it useful from behind the screen, there is something for Dungeon Masters and players alike within the book’s unearthly pages. Read on to find out if adding the latest Ravenloft book to your inventory is worth it for you.

What you’ll find inside Ravenloft: The Horrors Within… if you dare!

The setting for this expansion is Ravenloft, a series of eerie realms known as the Domains of Dread.  Each of these domains features a Darklord: an extremely powerful entity who has been imprisoned in a pocket dimension by the mysterious Dark Powers. Perhaps the most famous of these Darklords is Count Strahd von Zarovich, but the settings  vary widely from Lovecraft-inspired abandoned villages to frost-encrusted industrial realms filled with mad scientists.

Player options in The Horrors Within

The content that players will find most useful are the 20 pages dedicated to character options. After a brief primer on things to consider when creating a hero in a horror setting, there are seven subclasses that would be particularly fitting for a grim adventure. My favorite of these might be the Reanimator option for Artificers: I’m all in for technological mastery over death, plus you get an exploding zombie sidekick. There are also appropriately ghoulish subclass options for Bard, Cleric, Ranger, Rogue, Sorcerer, and Warlock. Some are new, and the returning ones (like Grave Domain Clerics) are updated for D&D 5.5.

There are four new backgrounds that can add relevant flair to any character exploring the mists of the Domains of Dread. Instead of a Soldier or Farmer, you could roll a Spirit Medium and be widely known for an ability to commune with the dead. Perhaps your character is a Mist Wanderer, simply trying to make their way home from a cursed realm. The Haunted One background gives you a chance to lean into a horrible event from your past, and the Investigator option is for those of you who’d like to channel their inner Egon Spengler and uncover the truth about the paranormal.

To go along with these backgrounds, there are several new feats including Dark Gifts. These setting-relevant feats are all in the flavor of making bargains for power with nefarious figures. The Dark Gift that I’m most excited to try is Living Shadow, which allows you to manipulate your own shadow to aid in combat (just don’t roll a 1 or it might get a mind of its own).

Finally, four new species have been officially added to D&D 5.5, and all of them have their roots in the occult. The Dhampir are a bit like half-vampires — you can choose to be the descendant or creation of a powerful vampire, or even to have been bestowed the prowess (and hunger) of a Dhampir through a shady deal with a powerful dark entity. Hexbloods are fey creatures with innate magical abilities that may stem from encounters with hags or other powerful witches. Lupins exists throughout the mists as half-werewolves with a permanent canine appearance and the ability to let loose a terror-inducing howl. Reborns are the not-quite-dead-yets of the Domains of Dread, sporting the scars of their brushes with the afterlife as well as being able to recall skills from their past lives.

Dungeon Master options in The Horrors Within

The bulk of Ravenloft: The Horrors Within consists of rundowns of 16 Domains of Dread that can be used as settings for dreadful adventures or campaigns, or as background information for players (as long as they don’t read too far into the adventures). Each one includes a description of the haunted realm as well as a biopic of its Darklord — the extremely powerful entity that has been imprisoned within. There are adventures for each domain with suggested campaign arcs and detailed maps, but they are limited to two or three pages and will require more imagination than other more ready-to-play expansions.

There are several other tools for the aspiring nightmarish DM such as guidelines for creating your own Domain of Dread. If your creative juices are flowing and you’re ready to dazzle your players with a homebrewed horror adventure, then these 20 pages of tips should help you craft a universe-consistent realm. What I’m most excited to dig into are 50 pages of stat blocks describing the horrible monsters and scheming denizens of the mists.

Should you add this to your collection?

There are a very large number of factors that you should weigh when making the decision to purchase each new D&D release. As always, I am simply your guide on this journey. I would say that this haunted genre tends to be one that folks either love or avoid, so if you enjoy horror movies and are always willing to play tabletop games in eerie settings then this will be more up your alley.

If you’re traditionally a player at your table, there might not be enough relevant content for you to rationalize your way into picking up this tome. If you’re behind the screen but you typically like to work from a ready-made campaign, the lack of a narrative tying the short adventures together might not be what you’re looking for.

For any general fans of Dungeons & Dragons, there is probably enough here that you’ll want to seriously consider adding this one to your library. Whether you already own its predecessor, Van Richten’s Guide to Ravenloft, will certainly be a factor, as it covers much of the same ground, with information on more Domains of Dread (though most in less detail than The Horrors Within), but without the player options, stat blocks, and updates for D&D 5.5e. If you’re planning on running a game set in the Domains of Dread, that new content could be useful — but still, Van Richten’s Guide is compatible with 5.5e games, so The Horrors Within isn’t essential if you own the previous book.

Ravenloft: The Horrors Within is now available for $59.99 (print) or $39.99 (digital), so head down to your local game store and pick up a copy if you’re feeling spooky.