
- BGG rank
- BGG #11,545
- BGG rating
- 6.2
Easy Peasy
- 2–6 players
- 15 min
- Complexity 1.6/5
- 2025

Rules assistance for Syncro: Extension Chapitre III – La Menace Venue de l'Océan
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.
Syncro: Extension Chapitre III – La Menace Venue de l'Océan is an expansion for Syncro released in 2025 for 2–5 players, 15 minutes per game, and ages 10 and up. It was designed by Thomas Favrelière and its main mechanics are Hand Management, Cooperative Game, and Communication Limits.
A sea monster threatens the coasts. As a mage, protector of the kingdom, you must face the danger. This third chapter is the continuation of Syncro You are a mage who has taken a vow of silence. You will have to face an unprecedented threat and fight monsters that endanger the kingdom. Cooperate without speaking to defeat all the monsters! At the beginning of the game, communicate the potential of your cards with a gesture. In turn, place a face-down card on a monster of your choice. At the end of a turn, reveal the cards placed on the monsters and find out if your attacks were powerful enough to defeat them. You must estimate the value played by your fellow players while having limited communication and information. As the game progresses, you will advance in the adventure and unlock new effects that will spice up your games. This expansion brings a more difficult challenges, new monsters, a new Boss and a hard mode for Chapter 2.
Syncro: Extension Chapitre III – La Menace Venue de l'Océan supports 2–5 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 Syncro: Extension Chapitre III – La Menace Venue de l'Océan 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 Syncro: Extension Chapitre III – La Menace Venue de l'Océan for ages 10 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.
Syncro: Extension Chapitre III – La Menace Venue de l'Océan belongs to these categories: Fantasy, Number, and Expansion for Base-game. Its main mechanics are Hand Management, Cooperative Game, and Communication Limits. 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 Syncro: Extension Chapitre III – La Menace Venue de l'Océan are: Thomas Favrelière. 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 Syncro: Extension Chapitre III – La Menace Venue de l'Océan as an expansion for Syncro. Expansions add new content, rules or scenarios to the base game and usually cannot be played on their own, so you need Syncro to use it. Check that your edition of Syncro is compatible, as some expansions were revised between editions.