
- BGG rank
- BGG #31,247
- BGG rating
- 5.2
The Legacy of Mars
- 1–5 players
- 150–300 min
- Complexity 2.2/5
- 2027

Rules assistance for Terraforming Mars: Prelude
Plain-language explanations of turns, card effects and disputed situations, with saved question history.

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Answers come from the official rulebook, with the page to check.
Terraforming Mars: Prelude is an expansion for Terraforming Mars released in 2018 for 1–5 players, 90–120 minutes per game, and ages 12 and up. It was designed by Jacob Fryxelius and its main mechanics are Hand Management, Tile Placement, and Solo / Solitaire Game.
As the mega corporations are getting ready to start the terraforming process, you now have the chance to make those early choices that will come to define your corporation and set the course for the future history of Mars - this is the prelude to your greatest endeavors! Terraforming Mars: Prelude introduces the new Prelude cards. At the start of the game, each player chooses from Prelude cards that jumpstart the terraforming process or boost their corporation's engine. This expansion also includes 5 new corporations and 7 new project cards that thematically fit the early stages of terraforming a new planet and can be added to the game even if you're not using the Prelude cards; and a new solo mode where your goal is to get to 63 TR before time runs out instead of completing the global parameters. Prelude is an expansion to Terraforming Mars, and can be combined with any other Terraforming Mars expansions or variants.
Terraforming Mars: Prelude supports 1–5 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 Terraforming Mars: Prelude is 90–120 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 Terraforming Mars: Prelude 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.
Terraforming Mars: Prelude has a complexity rating of 2.6 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.
Terraforming Mars: Prelude belongs to these categories: Economic, Science Fiction, and Industry / Manufacturing. Its main mechanics are Hand Management, Tile Placement, 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 Terraforming Mars: Prelude are: Jacob Fryxelius. 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 Terraforming Mars: Prelude as an expansion for Terraforming Mars. Expansions add new content, rules or scenarios to the base game and usually cannot be played on their own, so you need Terraforming Mars to use it. Check that your edition of Terraforming Mars is compatible, as some expansions were revised between editions.