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Unlock!: Short Adventures – The Ocean's Heart
2025
Rules assistance for Unlock!: Short Adventures – The Ocean's Heart
Plain-language explanations of turns, card effects and disputed situations, with official source references and saved question history.
- 1–6 players
- 45 min
- 10+
- Complexity 2.0/5
Rules assistant for Unlock!: Short Adventures – The Ocean's Heart
What would you like to know?
Answers come from the official rulebook, with the page to check.
Unlock!: Short Adventures – The Ocean's Heart is a board game released in 2025 for 1–6 players, 45 minutes per game, and ages 10 and up. It was designed by Mathieu Casnin and its main mechanics are Cooperative Game, Solo / Solitaire Game, and Real-Time.
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About the game
Unlock! Short Adventures: The Ocean's Heart! November 1800. As Captain Laurent drifts off to sleep in his cabin, a strange dream begins to take shape… A mysterious presence, forgotten symbols, a call from the depths. In this short and immersive adventure, set off on a journey as mysterious as it is unsettling. Unlock Short Adventures are 30 to 45 minute Unlocks in a small format, ideal for pocketing or giving as a gift. Unlock! is a cooperative card game inspired by escape rooms. Unlock! brings these experiences into your home, around a table. After familiarizing yourself with the context of the scenario, you begin your adventure in a room (a location map showing various numbers). Search the room for objects! Beware: some may be hidden! Visual and audio puzzles slow your progress. It's up to you to cooperate with your partners to advance and finish on time. To play, you need the free Unlock! app, compatible with Android and iOS phones and tablets. It allows you to obtain clues, locate hidden objects and enter the codes you discover. The app makes the game very real. It adds to the atmosphere, with music dedicated to each adventure, audio puzzles, terrible penalties and a fatal countdown. Unlock! Short Adventures: The Ocean's Heart is a scenario of difficulty 2 out of 3.
Designers
Publishers
- Space Cowboys
Questions and answers
Unlock!: Short Adventures – The Ocean's Heart 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 Unlock!: Short Adventures – The Ocean's Heart is 45 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 Unlock!: Short Adventures – The Ocean's Heart for ages 10 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.
Unlock!: Short Adventures – The Ocean's Heart has a complexity rating of 2.0 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.
Unlock!: Short Adventures – The Ocean's Heart belongs to these categories: Card Game, Exploration, and Adventure. Its main mechanics are Cooperative Game, Solo / Solitaire Game, and Real-Time. 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 Unlock!: Short Adventures – The Ocean's Heart are: Mathieu Casnin. 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 Unlock!: Short Adventures – The Ocean's Heart 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.