Concordia: Mare Nostrum
BGG rating
8.7

Expansion for Concordia

Concordia: Mare Nostrum

2026Powered by BGG

Rules assistance for Concordia: Mare Nostrum

Plain-language explanations of turns, card effects and disputed situations, with official source references and saved question history.

  • 2–5 players
  • 60–90 min
  • 13+

Rules assistant for Concordia: Mare Nostrum

What would you like to know?

Answers come from the official rulebook, with the page to check.

Concordia: Mare Nostrum is an expansion for Concordia released in 2026 for 2–5 players, 60–90 minutes per game, and ages 13 and up. It was designed by Mac Gerdts and its main mechanics are Area Movement, Market, and Deck Construction.

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About the game

A Concordia expansion map where you colonize Roman cities only from the sea. It does completely away with routes between cities. While the ships share sea regions from where they can build new houses in harbor cities of the Roman Empire, the land units offer additional new strategic choices inside a separate area on the board. It is a double sided board, designed for either 2 to 4 or for 3 to 5 players. You win by appeasing the Roman Gods in the usual manner of Concordia. —description from the publisher

Editions

  • Concordia: Mare NostrumenPD-Verlag2026

Questions and answers

Concordia: Mare Nostrum 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.