
- BGG rank
- BGG #11,805
- BGG rating
- 7.4
The Rising Sun: Command at Sea Volume I
- 2–12 players
- 150 min
- Complexity 4.3/5
- 1994

2011
Rules assistance for Command at Sea: Volume IX – Emperor's Fleet: The Imperial Japanese Navy in World War II
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.
Command at Sea: Volume IX – Emperor's Fleet: The Imperial Japanese Navy in World War II is a board game expansion released in 2011 for 2–12 players, 120 minutes per game, and ages 12 and up. It was designed by Larry Bond and its main mechanics are Hexagon Grid and Simulation.
(from the back of the book:) Emperor's Fleet provides statistics for the Japanese ships and aircraft, and all their weapons and sensors extant in the Second World War. Over 200 ship-classes and over 130 aircraft are included, many of which have not appeared in print before. All earlier listings for these ships and aircraft have been updated to include information from newly available references, and great strides have ben made in reconciling conflicting or incorrect sources. Damage data and other game-related information has also been updated to Command At Sea 4th Edition standard. More than making the information compatible with Command At Sea, the data is now in the same format and uses the same standards as "Harpoon" and "Fear God and Dreadnought", the other core games in the Admiralty Trilogy. All ships and aircraft extant from 1939 to late 1945, including several projected and/or hypothetical platforms are also here, such as the Tosa class battleship, cancelled after the Washington Treaty. A detailed listing of Japanese merchant ships is included. Late or post-war platforms include the Ibuki and B64 and B65 classes, as well as the A7M1 Reppu and the Ki-94 interceptor.
Command at Sea: Volume IX – Emperor's Fleet: The Imperial Japanese Navy in World War II supports 2–12 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 Command at Sea: Volume IX – Emperor's Fleet: The Imperial Japanese Navy in World War II is 120 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 Command at Sea: Volume IX – Emperor's Fleet: The Imperial Japanese Navy in World War II 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.
Command at Sea: Volume IX – Emperor's Fleet: The Imperial Japanese Navy in World War II has a complexity rating of 3.7 out of 5 from BoardGameGeek players, which makes it a medium-weight game. The rating reflects how much rules knowledge, planning and decision-making a typical game demands. Expect a longer first teach for heavier games, and use a preparation guide before game night.
Command at Sea: Volume IX – Emperor's Fleet: The Imperial Japanese Navy in World War II belongs to these categories: Wargame, Miniatures, and Nautical. Its main mechanics are Hexagon Grid and Simulation. 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 Command at Sea: Volume IX – Emperor's Fleet: The Imperial Japanese Navy in World War II are: Larry Bond. 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 Command at Sea: Volume IX – Emperor's Fleet: The Imperial Japanese Navy in World War II as an expansion. Expansions add new content, rules or scenarios to an existing base game and usually cannot be played on their own. Check the box or publisher description for the exact base game required, and make sure your edition of that game is compatible with this expansion.