
- BGG rank
- BGG #3,446
- BGG rating
- 7.2
Inhuman Conditions
- 2 players
- 5 min
- Complexity 2.0/5
- 2020

Rules assistance for Two Rooms and a Boom: Necroboomicon Expansion Pack
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.
Two Rooms and a Boom: Necroboomicon Expansion Pack is an expansion for Two Rooms and a Boom released in 2017 for 6–30 players, 15 minutes per game, and ages 8 and up. It was designed by Alan Gerding and Sean McCoy and its main mechanics are Variable Player Powers, Team-Based Game, and Acting.
The Necroboomicon Expansion Pack for Two Rooms and a Boom comes in a foil pack with characters designed as "Hard Mode". Designed with a H.P. Lovecraft Cthulhu theme, players wrestle with fear and suspicion. Necroboomicon was designed to enhance the experience of Two Rooms and a Boom for smaller groups. Color sharing is now permitted in groups with fewer than eleven players!
Two Rooms and a Boom: Necroboomicon Expansion Pack supports 6–30 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 Two Rooms and a Boom: Necroboomicon Expansion Pack is 15 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 Two Rooms and a Boom: Necroboomicon Expansion Pack 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.
Two Rooms and a Boom: Necroboomicon Expansion Pack has a complexity rating of 2.0 out of 5 from BoardGameGeek players, which makes it a medium-light 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.
Two Rooms and a Boom: Necroboomicon Expansion Pack belongs to these categories: Party Game, Deduction, and Horror. Its main mechanics are Variable Player Powers, Team-Based Game, and Acting. 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 Two Rooms and a Boom: Necroboomicon Expansion Pack are: Alan Gerding and Sean McCoy. 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 Two Rooms and a Boom: Necroboomicon Expansion Pack as an expansion for Two Rooms and a Boom. Expansions add new content, rules or scenarios to the base game and usually cannot be played on their own, so you need Two Rooms and a Boom to use it. Check that your edition of Two Rooms and a Boom is compatible, as some expansions were revised between editions.