
- BGG rank
- BGG #4,413
- BGG rating
- 6.9
Subatomic: An Atom Building Game
- 2–4 players
- 40–60 min
- Complexity 2.1/5
- 2018

Rules assistance for Krypto Fraction Supplement
Plain-language explanations of turns, card effects and disputed situations, with saved question history.

What would you like to know?
Answers come from the official rulebook, with the page to check.
Krypto Fraction Supplement is an expansion for Krypto for 1–10 players and ages 8 and up.
This expansion of twenty fraction cards can be added to the base Krypto deck. Aside from removing the prohibition against fractions from the basic game, play remains the same
Krypto Fraction Supplement supports 1–10 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 catalogue lists Krypto Fraction Supplement for ages 8 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.
Krypto Fraction Supplement belongs to these categories: Card Game, Educational, and Math. 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 Krypto Fraction Supplement and want something comparable for your next game night.
The catalogue lists Krypto Fraction Supplement as an expansion for Krypto. Expansions add new content, rules or scenarios to the base game and usually cannot be played on their own, so you need Krypto to use it. Check that your edition of Krypto is compatible, as some expansions were revised between editions.