
- BGG rating
- 8.4
Rules assistance for Deep Madness: The Oracle's Betrayal
Plain-language explanations of turns, card effects and disputed situations, with official source references and saved question history.
- 1–6 players
- 60–120 min
- 16+
- Complexity 3.0/5

Rules assistant for Deep Madness: The Oracle's Betrayal
What would you like to know?
Answers come from the official rulebook, with the page to check.
Deep Madness: The Oracle's Betrayal is an expansion for Deep Madness released in 2018 for 1–6 players, 60–120 minutes per game, and ages 16 and up. It was designed by Roger Ho and its main mechanics are Variable Player Powers, Hand Management, and Dice Rolling.
About the game
When the investigators first came to Kadath, they received a vision of a man intent on helping them defeat the terrors rampant in the mining facility. Little did they know that one of their only allies would turn into one of their greatest threats. This is The Oracle’s Betrayal, an expansion for Deep Madness. Oracle features three new investigators: the morally-driven detective John Murdock; the morally depraved psychologist Dr. Clarence Branom; and the star of the whole #justiceforhannah movement, little Hannah herself. New nasties include: the Victims: lost, fractured souls who only want to survive - and who the investigators start out Chapter One as; the Collectors: monstrous diving-helmet-bedecked servants who exist for one reason - to harvest fragments of souls and return them to their abominable master; the Dissected: creatures who might not always be as evil as their horrific appearance may at first hint at. And then, last of all, the horrific mastermind Dr. William West. The Oracle's Betrayal has several new mechanics tied in to some very unique scenarios. The fusion deck. Fusion cards work by integrating two investigators together. William's will, trial, and puppet cards. The puppet's goal is now to kill the other investigators while the investigators will be unable to win the scenario unless they kill the puppet.
Mechanics
Designers
Publishers
- Czacha Games
- Diemension Games
Questions and answers
Deep Madness: The Oracle's Betrayal supports 1–6 players according to the catalogue. This range comes from the publisher’s listed player count, so the game can be set up for any group size within it. Some setups, rules and scoring details may still vary by player count, so check your edition’s rulebook for the exact configuration.
The listed playing time for Deep Madness: The Oracle's Betrayal is 60–120 minutes. This is the publisher’s estimate for a full game. The actual duration depends on the group, the player count and familiarity with the rules: first sessions usually run longer, while experienced groups often finish faster. Setup and teaching time are not included in this estimate.
The catalogue lists Deep Madness: The Oracle's Betrayal for ages 16 and up. This is the publisher’s recommendation and reflects reading demands, rule complexity and small components rather than theme alone. Younger players can often join with help from an adult, so check the age guidance on your edition and consider your group’s experience with board games.
Deep Madness: The Oracle's Betrayal has a complexity rating of 3.0 out of 5 from BoardGameGeek players, which makes it a medium-weight game. The rating reflects how much rules knowledge, planning and decision-making a typical game demands. Expect a longer first teach for heavier games, and use a preparation guide before game night.
Deep Madness: The Oracle's Betrayal belongs to these categories: Fighting, Horror, and Adventure. Its main mechanics are Variable Player Powers, Hand Management, and Dice Rolling. Categories describe the theme and setting of a game, while mechanics describe what players actually do on their turns. Each mechanic links to a catalogue hub with similar games, which helps when you want something comparable.
The credited designers of Deep Madness: The Oracle's Betrayal are: Roger Ho. These credits come from the published game data and name the people responsible for the game’s design, not its illustrators or publishers. Designer pages on MeepleRules collect other titles by the same designers, which helps when you enjoy a game and want to find similar ones.
The catalogue lists Deep Madness: The Oracle's Betrayal as an expansion for Deep Madness. Expansions add new content, rules or scenarios to the base game and usually cannot be played on their own, so you need Deep Madness to use it. Check that your edition of Deep Madness is compatible, as some expansions were revised between editions.