
- BGG rank
- BGG #1,974
- BGG rating
- 6.8
Traders of Osaka
- 2–4 players
- 30 min
- Complexity 2.0/5
- 2006

2012
Rules assistance for Tower of Doubt
Plain-language explanations of turns, card effects and disputed situations, with official source references and saved question history.

For 2 players
What would you like to know?
Answers come from the official rulebook, with the page to check.
Tower of Doubt is a board game released in 2012 for 2 players, 10–20 minutes per game, and ages 10 and up. It was designed by Susumu Kawasaki.
To set up ギシンアンキノトウ (Towers of Conspiracy), six four-sided towers are placed on the board, and for each tower, a player can see only two of the four sides. More importantly, each player sees the two sides that their opponent does not, and the sides of each tower are colored either yellow or black. Only six different combinations of yellow and black are possible — all sides yellow, three sides yellow, two opposite or adjacent sides yellow, one side yellow, and zero sides yellow — and players try to collect as many yellow sides as possible. To do this, they place colored blocks on the towers, serving as both bluffing devices and ways to claim towers, and at the end of the round, each player claims two towers.
Tower of Doubt 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.
The listed playing time for Tower of Doubt is 10–20 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 Tower of Doubt 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.
Tower of Doubt 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.
Tower of Doubt belongs to these categories: Deduction. Categories describe the theme, setting and style of a game rather than its rules. Filter the catalogue by the same category to find similar games when you enjoyed Tower of Doubt and want something comparable for your next game night.
The credited designers of Tower of Doubt are: Susumu Kawasaki. 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 Tower of Doubt 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.