
- BGG rank
- BGG #1,389
- BGG rating
- 7.2
Mr. Jack in New York
- 2 players
- 30 min
- Complexity 2.5/5
- 2009

Rules assistance for Mr. Jack: Extension
Plain-language explanations of turns, card effects and disputed situations, with official source references and saved question history.

What would you like to know?
Answers come from the official rulebook, with the page to check.
Mr. Jack: Extension is an expansion for Mr. Jack released in 2018 for 2 players, 30 minutes per game, and ages 9 and up. It was designed by Bruno Cathala and Ludovic Maublanc and its main mechanics are Variable Player Powers and Grid Movement.
October, 1888 — Whitechapel, London: Jack's shadow still hangs heavy over the back-streets of the East End. Scotland Yard has assigned Inspector Abberline to take over the investigation, aided by five new detectives with extraordinary abilities. The new recruits include the formidable Professor Moriarty, who uses his intelligence and cunning to impersonate the other detectives. Is he trying to put Jack off his stride, or to outwit his rival Sherlock Holmes? Or could he even be Jack himself, disguised as Moriarty? Who is the elusive Jack? The unrelenting manhunt continues! Mr. Jack: Extension is an expansion for the Mr. Jack deduction game that features refreshed artwork for the tenth anniversary of the game as well as an original character as strong as it is enigmatic: Professor Moriarty, whose special ability is to imitate one of the characters who is not at stake. Moriarty is quite the chameleon, impersonating the other detectives by mimicking their appearance and using their abilities! This expansion lets you play with six new characters: meet the sultry Madame, flee the terrifying Pizer, avoid the revolutionary Joseph Lane's barricade, dodge Inspector Abberline's probing questions, bound along London's streets with the Spring-Heeled Man, and watch out for Moriarty. At the start of the game, choose which of the eight characters to play with via a draft and determine their starting locations. These new possibilities add fun and strategic depth. Whether playing as Jack or the Detective, master them all to win! —description from publisher
Mr. Jack: Extension supports 2 players according to the catalogue. This is the publisher’s listed player count, so the game is designed for exactly that number of participants. Variants for other group sizes, if any, are described in the rulebook of your edition, so check it before setting up a different configuration.
The listed playing time for Mr. Jack: Extension is 30 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 Mr. Jack: Extension for ages 9 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.
Mr. Jack: Extension 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.
Mr. Jack: Extension belongs to these categories: Deduction, Murder / Mystery, and Expansion for Base-game. Its main mechanics are Variable Player Powers and Grid Movement. 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 Mr. Jack: Extension are: Bruno Cathala and Ludovic Maublanc. 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 Mr. Jack: Extension as an expansion for Mr. Jack. Expansions add new content, rules or scenarios to the base game and usually cannot be played on their own, so you need Mr. Jack to use it. Check that your edition of Mr. Jack is compatible, as some expansions were revised between editions.