
- BGG rank
- BGG #4,624
- BGG rating
- 6.8
Sonar Family
- 2–4 players
- 30 min
- Complexity 1.5/5
- 2018

Rules assistance for Captain Sonar: Mission Vectrum
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.
Captain Sonar: Mission Vectrum is an expansion for Captain Sonar released in 2022 for 4–8 players, 20–45 minutes per game, and ages 10 and up. Its main mechanics are Grid Movement, Secret Unit Deployment, and Role Playing.
Mission Vectrum is a mini-expansion for Captain Sonar and contains three different sea cards that can be played individually or as a coherent campaign. Each sea card is included four times: two times for the radio operators and two times for the captains. With its 3 missions, the Vectrum campaign make you dive you into a thrilling adventure. A cutting-edge military-scientific conglomerate has recruited experienced crews to test their new equipment in real conditions. Welcome to the Vectrum Campaign, which will take you from Chicago to New York to end with a climax on a secret mission! The Vectrum campaign includes 3 missions, which can be played consecutively in a “campaign” mode, or individually, with their specific rules and constraints.
Captain Sonar: Mission Vectrum supports 4–8 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 Captain Sonar: Mission Vectrum is 20–45 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 Captain Sonar: Mission Vectrum 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.
Captain Sonar: Mission Vectrum belongs to these categories: Fighting, Deduction, and Real-time. Its main mechanics are Grid Movement, Secret Unit Deployment, and Role Playing. 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 catalogue lists Captain Sonar: Mission Vectrum as an expansion for Captain Sonar. Expansions add new content, rules or scenarios to the base game and usually cannot be played on their own, so you need Captain Sonar to use it. Check that your edition of Captain Sonar is compatible, as some expansions were revised between editions.