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Mansions of Madness: Second Edition
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Rules assistance for Arkham Horror (Third Edition): Under Dark Waves
Plain-language explanations of turns, card effects and disputed situations, with official source references and saved question history.
- 1–6 players
- 120–180 min
- 14+
- Complexity 3.5/5
Rules assistant for Arkham Horror (Third Edition): Under Dark Waves
What would you like to know?
Answers come from the official rulebook, with the page to check.
Arkham Horror (Third Edition): Under Dark Waves is an expansion for Arkham Horror (Third Edition) released in 2020 for 1–6 players, 120–180 minutes per game, and ages 14 and up. It was designed by Philip D. Henry and its main mechanics are Variable Player Powers, Dice Rolling, and Modular Board.
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About the game
Cold salt waves beat on the New England coast and thick fog rolls in off the bay, obscuring the small fishing hamlets that nestle in the darkness. Dark things creep along the shoreline, strange lights glide deep beneath the surface of the Atlantic, and the pallid villagers go missing with disturbing regularity. Under Dark Waves is a new large box expansion for Arkham Horror, taking your investigations beyond the town of Arkham to the other ill-fated towns of Massachusetts. Two new double-sided tiles bring Kingsport and Innsmouth to vibrant life, while eight more investigators arrive to join your party, ranging from a drifter like “Ashcan” Pete to a letter carrier such as Stella Clark. These investigators will have their work cut out for them with four entirely new scenarios pitting them against the horrors that lurk beneath the ocean waves. With over 150 encounter and event cards, alongside new assets, monsters, conditions, and the terror mechanic, Under Dark Waves boasts a vast undersea treasure trove, pulling you into some of the Cthulhu Mythos’s most compelling tales. —description from the publisher
Designers
Publishers
- Delta Vision Publishing
- Galápagos Jogos
- Hobby World
- Korea Boardgames
- Fantasy Flight Games
- Galakta
Questions and answers
Arkham Horror (Third Edition): Under Dark Waves 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 Arkham Horror (Third Edition): Under Dark Waves is 120–180 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 Arkham Horror (Third Edition): Under Dark Waves for ages 14 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.
Arkham Horror (Third Edition): Under Dark Waves has a complexity rating of 3.5 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.
Arkham Horror (Third Edition): Under Dark Waves belongs to these categories: Fighting, Horror, and Adventure. Its main mechanics are Variable Player Powers, Dice Rolling, and Modular Board. 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 Arkham Horror (Third Edition): Under Dark Waves are: Philip D. Henry. 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 Arkham Horror (Third Edition): Under Dark Waves as an expansion for Arkham Horror (Third Edition). Expansions add new content, rules or scenarios to the base game and usually cannot be played on their own, so you need Arkham Horror (Third Edition) to use it. Check that your edition of Arkham Horror (Third Edition) is compatible, as some expansions were revised between editions.