
- BGG rank
- BGG #118
- BGG rating
- 7.9
The Search for Planet X
- 1–4 players
- 60–75 min
- Complexity 2.4/5
- 2020

2020
Rules assistance for Box One
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.
Box One is a board game released in 2020 for 1 player, 180–240 minutes per game, and ages 14 and up. It was designed by Neil Patrick Harris and its main mechanics are Deduction, Paper-and-Pencil, and Solo / Solitaire Game.
Box ONE is an ever-evolving game of trivia, codes, puzzles, and discovery - only from the mind of Neil Patrick Harris. There’s tons of great party games — but unlike the rest, Box ONE is designed to challenge just ONE person: YOU! And you alone. Prepare to set out on an exciting adventure like no other as you discover, decode, and unlock the secrets of Box ONE. Look closely, though, as with all things - there’s more than meets the eye... Box ONE is the perfect gift for anyone into puzzles, codes, and escape rooms. The game represents years of thought and careful planning by Neil Patrick Harris. Everything you need to decode each challenge is inside the box. Can you decode it? Can you solve it? The clock is ticking... Please note that an internet connected device is required to complete this game.
Box One supports 1 player 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.
The listed playing time for Box One is 180–240 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 Box One 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.
Box One 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.
Box One belongs to these categories: Deduction, Puzzle, and Trivia. Its main mechanics are Deduction, Paper-and-Pencil, 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 Box One are: Neil Patrick Harris. 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 Box One 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.