
- BGG rank
- BGG #1,015
- BGG rating
- 6.9
One Deck Dungeon
- 1–2 players
- 30–45 min
- Complexity 2.1/5
- 2016

2022
Rules assistance for One Deck Galaxy
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.
One Deck Galaxy is a board game released in 2022 for 1–2 players, 30–60 minutes per game, and ages 14 and up. It was designed by Chris Cieslik and its main mechanics are Cooperative Game, Melding and Splaying, and Deck, Bag, and Pool Building.
Your civilization has reached the stars, and your population is hungry for discovery. Explore, colonize, research — but be sure to build up your strength to be ready for the dangers that await! One Deck Galaxy is a co-op space civilization-building game using only cards, dice, and tokens. Each card in the deck represents both a location in space your civilization has scouted, but also the benefits it could reap by colonizing or studying it. These benefits increase your ability to roll dice and manipulate them, and help your civilization grow stronger. When the deck runs out, the era advances and your foes become more dangerous. If you're not ready, they may overwhelm you and send your empire into decline before it can become truly great!
One Deck Galaxy supports 1–2 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 One Deck Galaxy is 30–60 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 One Deck Galaxy 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.
One Deck Galaxy has a complexity rating of 3.3 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.
One Deck Galaxy belongs to these categories: Card Game, Dice, and Space Exploration. Its main mechanics are Cooperative Game, Melding and Splaying, and Deck, Bag, and Pool Building. 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 One Deck Galaxy are: Chris Cieslik. 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 One Deck Galaxy 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.