Signal
BGG rank
BGG #8,285
BGG rating
7.2

Signal

2025

Rules assistance for Signal

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

  • 2–6 players
  • 10–20 min
  • 10+
  • Complexity 2.0/5

For 2 players

Rules assistant for Signal

What would you like to know?

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

Signal is a board game released in 2025 for 2–6 players, 10–20 minutes per game, and ages 10 and up. It was designed by Jasper Beatrix and its main mechanics are Deduction, Cooperative Game, and Communication Limits.

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About the game

In Signal, players take on the role of Experts seeking to understand the Alien player, who in turn is seeking to be understood. The Experts will create and transmit "signals" to the Alien, who has certain rules for how to respond that must be deduced by the Experts. Once the Experts understand these rules, they can ensure that they come to agreement with the Alien, succeeding co-operatively. On a turn, the Experts arrange black and white pieces on a mat to represent a graphical signal, discussing and debating how and what to send. Once finished, the Alien then replies by using pre-set rules only they can see to add, remove, and adjust the signal, both to be helpful and to try to reach an agreement, which is represented by a pre-set signal that they are trying to achieve with their limited response capabilities. As the Experts analyze and understand the Alien, they can use limited guesses and a few hint-like abilities to discover which signal they can send that will result in agreement. The Alien even has a little leeway in how they respond; after all, they want to be understood. After succeeding at the first round, Experts then reset and continue with the same Alien, except new rules are in play on top of the previous ones, showing a deeper and deeper familiarity with the Alien player. After three rounds of successful agreements, all players win co-operatively and receive a score based on leftover guesses and unused abilities. —description from the publisher The publisher has issued errata to correct errors on three of the Alien cards.

Questions and answers

Signal supports 2–6 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.