
- BGG rank
- BGG #3,677
- BGG rating
- 7.7
D100 Dungeon
- 1 player
- 5–90 min
- Complexity 2.8/5
- 2018

Rules assistance for D100 Space: Galaxy Builder
Plain-language explanations of turns, card effects and disputed situations, with official source references and saved question history.

What would you like to know?
Answers come from the official rulebook, with the page to check.
D100 Space: Galaxy Builder is an expansion for D100 Space released in 2024 for 1 player, 5–90 minutes per game, and ages 10 and up. It was designed by Martin Knight and its main mechanics are Dice Rolling, Paper-and-Pencil, and Role Playing.
D100 Space Galaxy Builder (Book 2) adds to D100 Space a way to create and explore new and fascinating galaxies. Your captain will travel the galaxy, interacting with star systems, space stations, and military docks; and explore unique and dangerous planets in search of adventure. They will discover missions and may even have events sprung on them as they explore the darkest reaches of space. —description from the designer
D100 Space: Galaxy Builder 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 D100 Space: Galaxy Builder is 5–90 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 D100 Space: Galaxy Builder 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.
D100 Space: Galaxy Builder belongs to these categories: Fighting, Dice, and Adventure. Its main mechanics are Dice Rolling, Paper-and-Pencil, and Role Playing. 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 D100 Space: Galaxy Builder are: Martin Knight. 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 D100 Space: Galaxy Builder as an expansion for D100 Space. Expansions add new content, rules or scenarios to the base game and usually cannot be played on their own, so you need D100 Space to use it. Check that your edition of D100 Space is compatible, as some expansions were revised between editions.