
- BGG rating
- 7.8
Great War at Sea: U.S. Navy Plan Gray
- 1–2 players
- 30–180 min
- 2016

Expansion for Great War at Sea: Confederate States Navy (Second Edition)
2015
Rules assistance for Great War at Sea: C.S. Navy Plan Blue
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.
Great War at Sea: C.S. Navy Plan Blue is an expansion for Great War at Sea: Confederate States Navy (Second Edition) released in 2015 for 1–2 players, 30–180 minutes per game, and ages 12 and up. It was designed by Michael Bennighof and James Stear and its main mechanics are Dice Rolling, Secret Unit Deployment, and Hexagon Grid.
From the publisher's website: Great War at Sea: Confederate States Navy introduced a world where the Confederate States achieved a negotiated peace with the Union in 1862, but fighting erupted again a little more than five decades later. CSN: Plan Blue takes the fighting to the Northern theater, using the map and pieces from U.S. Navy Plan Red as well as Confederate States Navy. The South seeks to harass Northern commerce and fend off attempts to isolate and capture the great fleet base at Norfolk. The Confederate fleet adds its oldest ships still active: the locally-designed and -built coast-defense ships of the Davis class and the British-built pre-dreadnoughts of the Chesapeake class. The United States Navy gets additional dreadnoughts: with a hostile neighbor so close by, battleship classes expand to four ships rather than just two. A strategy built around commerce raiding has driven the Confederate Navy to specialize in armored cruisers to raid Yankee shipping. Unable to afford the big, expensive battle cruisers introduced by their British allies, the Confederates have worked to build fast armored cruisers that can overwhelm Union cruisers and run away from Union battleships. CSN: Plan Blue is a supplement for the Great War at Sea series, based on battles that never happened. It is not a complete game: Ownership of U.S. Navy Plan Red, Jutland and Confederate States Navy (and only those three items) is necessary to play all of the ten scenarios included. CSN: Plan Blue includes 100 laser-cut and mounted playing pieces: 40 "long" pieces representing major warships and 60 square ones representing smaller craft and airplanes.
Great War at Sea: C.S. Navy Plan Blue supports 1–2 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 Great War at Sea: C.S. Navy Plan Blue is 30–180 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 Great War at Sea: C.S. Navy Plan Blue for ages 12 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.
Great War at Sea: C.S. Navy Plan Blue belongs to these categories: Wargame, Nautical, and Expansion for Base-game. Its main mechanics are Dice Rolling, Secret Unit Deployment, and Hexagon Grid. 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 Great War at Sea: C.S. Navy Plan Blue are: Michael Bennighof and James Stear. 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 Great War at Sea: C.S. Navy Plan Blue as an expansion for Great War at Sea: Confederate States Navy (Second Edition). Expansions add new content, rules or scenarios to the base game and usually cannot be played on their own, so you need Great War at Sea: Confederate States Navy (Second Edition) to use it. Check that your edition of Great War at Sea: Confederate States Navy (Second Edition) is compatible, as some expansions were revised between editions.