
- BGG rating
- 8.0
Mutagen: Expansion Pack
- 1–4 players
- 60–90 min
- Complexity 2.0/5
- 2025

2025
Rules assistance for Mutagen
Plain-language explanations of turns, card effects and disputed situations, with official source references and saved question history.
For 1 player

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Answers come from the official rulebook, with the page to check.
Mutagen is a board game released in 2025 for 1–4 players, 60–90 minutes per game, and ages 12 and up. It was designed by Alexandros Kapidakis and its main mechanics are Tile Placement, End Game Bonuses, and Solo / Solitaire Game.
As mining activities intensified in the twilight years of the industrial revolution, competition for natural resources grew fierce and industrialists burrowed themselves deeper and deeper into the sodden depths of the earth. One mining operation dug deeper than any other, and the events that followed this endeavour have become the stuff of myth and legend. What little information is known about the venture centres on the discovery of a new and powerful element, an element known simply as ‘The Great Shard’. The Great Shard’s mystical properties not only accelerated the industrial revolution dramatically, but also altered the world around it, spawning creatures and phenomena that defied every natural law imaginable. The world would never be the same. Soon, the mad industrialist known only as ‘the Keeper’ had learned to control the power of the Great Shard. Their lust for progress extended beyond the industrial world through which they had gained their power, and morphed into an obsession with biogenetic modifications. People who indulged in this practice of self mutation became known as the Mutagen. Now, many years later, the Keeper of the Shard is nearing the end of his unnaturally extended life, and you are one of four Mutagen in the running to take over their position of power. The Keeper will be observing your every move, and will choose only one successor before he draws his final breath. Mutagen is a customisable worker placement game set in a 1920s biopunk universe. Each player has four workers that each react differently to the areas they are placed in. Each time a player places a worker, they will activate that location's action, plus an additional action determined by the worker's colour. Players can unlock the full potential of biological upgrades, by infusing their workers with biological upgrades that will grant them a decisive edge over their opponents. Each worker location has been forever transformed by vast bio-enhanced changes. Collect elements from the floating cities and use them in various ways. Trade them for objective cards, establish dominance over particular elements through strategic investments, or harness their energy to upgrade your airship. With each move, you accumulate points, driving you closer to victory at different stages of the game. The player who has best harnessed the newfound powers of this biopunk universe, and used them to collect the most amount of points after four years (rounds) will win the game. —description from the publisher
Mutagen supports 1–4 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 Mutagen is 60–90 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 Mutagen for ages 12 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.
Mutagen has a complexity rating of 3.0 out of 5 from BoardGameGeek players, which makes it a medium-weight 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.
Mutagen belongs to these categories: Horror, Science Fiction, and Environmental. Its main mechanics are Tile Placement, End Game Bonuses, 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 Mutagen are: Alexandros Kapidakis. 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 Mutagen 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.