
- BGG rank
- BGG #9,492
- BGG rating
- 7.4
Harpoon 4: Modern Tactical Naval Warfare
- 2–8 players
- 150 min
- Complexity 4.4/5
- 1997

Rules assistance for Harpoon: Data Annex
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.
Harpoon: Data Annex is an expansion for Harpoon (Third Edition) released in 1990 for 2 players. It was designed by Larry Bond and its main mechanics are Dice Rolling, Secret Unit Deployment, and Simulation.
Subtitle: "Ships, Subs, Aircraft, Weapons and Electronic Data." The heart of the Harpoon modern war game is its information-packed DATA ANNEX. This is the fully revised 1990-91 edition, edited and updated by Harpoon designer Larry Bond. The latest intelligence on naval weaponry- statistics, data and details that define the ships, subs, aircraft, electronics and weapons of the world's modern navies. Includes new aircraft endurance rules and brings earlier editions of the core game up to version 3.2.
Harpoon: Data Annex supports 2 players according to the catalogue. This is the publisher’s listed player count, so the game is designed for exactly that number of participants. Variants for other group sizes, if any, are described in the rulebook of your edition, so check it before setting up a different configuration.
Harpoon: Data Annex has a complexity rating of 3.5 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.
Harpoon: Data Annex belongs to these categories: Wargame, Miniatures, and Nautical. Its main mechanics are Dice Rolling, Secret Unit Deployment, 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 Harpoon: Data Annex 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 Harpoon: Data Annex as an expansion for Harpoon (Third Edition). Expansions add new content, rules or scenarios to the base game and usually cannot be played on their own, so you need Harpoon (Third Edition) to use it. Check that your edition of Harpoon (Third Edition) is compatible, as some expansions were revised between editions.