
- BGG rating
- 7.7
Key Flow: Keylector
- 2–6 players
- 45–75 min
- Complexity 3.0/5
- 2019

2018
Rules assistance for Key Flow
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.
Key Flow is a board game released in 2018 for 2–6 players, 45–75 minutes per game, and ages 14 and up. It was designed by Sebastian Bleasdale, Richard Breese, and Ian Vincent and its main mechanics are Set Collection, Ownership, and Variable Set-up.
The great river Key Flow passes through the new Key Lands, carrying ships laden with resources for building and trade. Along the riverside, buildings are built, boats are moored in docks, and animals graze in the fields. Players build communities alongside this river, and send workers (known as "keyples") to work in both their own and their neighbors' businesses, enabling their economy to develop and flourish. Key Flow is a card-driven game based on many of the ideas contained in the award-winning game Keyflower. The game flows quickly over four game rounds (seasons), allowing players to develop their own unique village, with many ways to score points for their buildings, animals, keyples, resources and other items. Key Flow is played over four seasons (rounds). Each season, players are dealt a number of cards. They then choose one of their cards and pass the remaining cards to the player on their left or right — depending on the season — until all the cards have been chosen. All scoring takes place at the end of winter. Points are scored from the village cards in various ways, through upgrading buildings, and from gathering gold. The player who scores the most points wins.
Key Flow supports 2–6 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 Key Flow is 45–75 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 Key Flow 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.
Key Flow has a complexity rating of 2.9 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.
Key Flow belongs to these categories: Card Game, Economic, and Farming. Its main mechanics are Set Collection, Ownership, and Variable Set-up. 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 Key Flow are: Sebastian Bleasdale, Richard Breese, and Ian Vincent. 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 Key Flow 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.