
- BGG rank
- BGG #6,545
- BGG rating
- 8.1
Curse of the Dark
- 1–6 players
- 120–240 min
- Complexity 2.3/5
- 2022

2021
Rules assistance for Danger in the Deep
Plain-language explanations of turns, card effects and disputed situations, with official source references and saved question history.
For 1 player

What would you like to know?
Answers come from the official rulebook, with the page to check.
Danger in the Deep is a board game released in 2021 for 1–6 players, 120 minutes per game, and ages 14 and up. It was designed by James Smith (II) and Elliot Humphries and its main mechanics are Deduction, Cooperative Game, and Solo / Solitaire Game.
The year is 19XX. As the country's most successful secret agent, [NAME REDACTED], you've been on the hunt for an enemy spy, codename PROTEUS, on board the docked nuclear submarine Retiarius. However, your mission spirals out of control when the Retiarius submerges and its warheads prime for launch! Danger in the Deep is a collaborative escape room game, where players must navigate their way through the engine room, crew’s quarters, mess and control room of a submarine. Only by gathering key information and solving the 14 interactive puzzles will teams be able to disable the warheads, stop PROTEUS, and save the world. The game features puzzle books, cards, secret components, a blueprint, and a working UV torch (batteries included, 3 x AAA). Danger in the Deep features a tiered hint system, to enable teams of all abilities to progress through the game and story. The game can optionally be completed solo. Danger in the Deep is designed as a one-time experience, as some of the puzzles require players to cut, fold and write on the components. However, Professor Puzzle do provide a printable pdf of the destructible components, in the Files section on BGG and on their website, to enable the game to be replayed.
Danger in the Deep supports 1–6 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.
The listed playing time for Danger in the Deep 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 Danger in the Deep for ages 14 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.
Danger in the Deep has a complexity rating of 2.6 out of 5 from BoardGameGeek players, which makes it a medium-light 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.
Danger in the Deep belongs to these categories: Murder / Mystery, Puzzle, and Nautical. Its main mechanics are Deduction, Cooperative Game, and Solo / Solitaire Game. 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 Danger in the Deep are: James Smith (II) and Elliot Humphries. 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 Danger in the Deep as a base game. It can be played on its own with the components in the box and does not require any other title. Expansions, if any exist, add new content or rules on top of it and are listed separately in the catalogue with a link back to this base game.