
- BGG rank
- BGG #2,096
- BGG rating
- 7.7
Adventure Tactics: Domianne's Tower
- 1–5 players
- 45–90 min
- Complexity 2.5/5
- 2021

Expansion for Dungeons & Dragons: Onslaught
2023
Rules assistance for Dungeons & Dragons: Onslaught – Nightmare of the Frogmire Coven: Maps & Monsters Expansion
Plain-language explanations of turns, card effects and disputed situations, with official source references and saved question history.

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Answers come from the official rulebook, with the page to check.
Dungeons & Dragons: Onslaught – Nightmare of the Frogmire Coven: Maps & Monsters Expansion is an expansion for Dungeons & Dragons: Onslaught released in 2023 for 1–2 players, 30–120 minutes per game, and ages 8 and up. It was designed by Nicholas Yu and Travis Severance and its main mechanics are Area Movement, Grid Movement, and Line of Sight.
While deep in your cups at the Distant Lands Inn, you are ambushed by a hunched and hooded stranger whose very presence chills you to the bone. Before you can react, fell sorcery transports you and your companions to the dark heart of the Frogmire swamp. Ensnared by a sinister coven and beset on all sides, the nightmare is just beginning… This expansion set is a companion to the Dungeons & Dragons: Onslaught Harpers vs. Zhentarim core set, featuring stunning monster miniatures, a new double-sided game board, and eight sinister scenarios designed to freeze your blood and test your tactical acumen. Fight your way to the frightening Froghemoth, with removable tentacles and eyestalks that let you switch between underwater and above water versions! It also features a new deck of item cards to swap with the core set item cards, providing new abilities, and adding the danger of cursed items! The scenarios in Nightmare of the Frogmire Coven take place on the included all-new double-sided map featuring a swamp on one side, and overgrown ruins on the other, both of which use bridge tokens of different sizes to create unique layouts. There are six main interlinked scenarios, a solo scenario and a 3-4 player free-for-all scenario for players looking for new ways to play! Can you defeat your rivals and escape the nightmare? Or will you be lost forever in the brackish depths? —description from the publisher
Dungeons & Dragons: Onslaught – Nightmare of the Frogmire Coven: Maps & Monsters Expansion supports 1–2 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 Dungeons & Dragons: Onslaught – Nightmare of the Frogmire Coven: Maps & Monsters Expansion is 30–120 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 Dungeons & Dragons: Onslaught – Nightmare of the Frogmire Coven: Maps & Monsters Expansion for ages 8 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.
Dungeons & Dragons: Onslaught – Nightmare of the Frogmire Coven: Maps & Monsters Expansion belongs to these categories: Fantasy, Fighting, and Miniatures. Its main mechanics are Area Movement, Grid Movement, and Line of Sight. 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 Dungeons & Dragons: Onslaught – Nightmare of the Frogmire Coven: Maps & Monsters Expansion are: Nicholas Yu and Travis Severance. 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 Dungeons & Dragons: Onslaught – Nightmare of the Frogmire Coven: Maps & Monsters Expansion as an expansion for Dungeons & Dragons: Onslaught. Expansions add new content, rules or scenarios to the base game and usually cannot be played on their own, so you need Dungeons & Dragons: Onslaught to use it. Check that your edition of Dungeons & Dragons: Onslaught is compatible, as some expansions were revised between editions.