
- BGG rank
- BGG #9,698
- BGG rating
- 7.0
Murus Gallicus
- 2 players
- 20 min
- Complexity 2.9/5
- 2009

2010
Rules assistance for Momentum
Plain-language explanations of turns, card effects and disputed situations, with official source references and saved question history.

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Answers come from the official rulebook, with the page to check.
Momentum is a board game released in 2010 for 2–3 players, 15 minutes per game, and ages 10 and up. It was designed by Phil Leduc and its main mechanics are Tile Placement.
Momentum is a dynamic abstract strategy board game in which the lead swings back and forth like the steel spheres of Newton’s cradle. Grabbing the lead and holding onto it is the challenge. The mechanics of the game simulate the game of marbles. Players take turns dropping one of their eight marbles (glass stones) onto a square 7 x 7 game board. On the second player’s first turn only, the second player may either drop a counter or replace the first player’s dropped counter with one of his or her own (Pie Rule). The momentum of the dropped marble is transferred in up to eight (orthogonal and diagonal) directions through adjacent contiguous lines of marbles. The last marble at the end of each of these lines is pushed away one cell from the dropped marble. Some fall off the board and are returned to the owning players. When a player has only one marble left in hand, he or she is required to announce the last marble. At which point, his opponent is forced to knock at least one of his other seven marbles off the board, otherwise the opponent would lose the game. The first player to have all eight of his or her marbles on the board at the end of his or her turn wins the game. For beginners and perpetual games the following rule applies to the standard 7 x 7 game. 30-Rounds Rule (Optional, recommended for beginners): If a game lasts for 30 rounds (60 player turns), play stops and the outcome is determined. If either player has a majority of marbles on the board that player wins, if not, the game ends in a draw. Players can use a spare token to keep track of rounds by using the outside edge of the board. Once around is 28 steps. Two more rounds and the game ends.
Momentum supports 2–3 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 Momentum is 15 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 Momentum 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.
Momentum has a complexity rating of 2.3 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.
Momentum belongs to these categories: Print & Play and Abstract Strategy. Its main mechanics are Tile Placement. 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 Momentum are: Phil Leduc. 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 Momentum 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.