Ludexv2026.11.01-65114139Terraforming MarsOfficial rulebook ↗

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Resources and Cards

The player board, the six standard resources and production, how to read a card, tags, resources on cards, and the red border.

Player board

Player board with the rulebook's numbered parts

  1. Production tracks — your production of each resource
  2. MegaCredits — money
  3. Steel — pays for building cards
  4. Titanium — pays for space cards
  5. Plants — 8 make a greenery
  6. Energy — used by cards, turns into heat
  7. Heat — 8 raise the temperature

Resource cubes sit in the boxes; your player markers sit on the production tracks.

Production

A resource in a brown box on a card means production: move your marker on that track. A resource without a box is a one-off gain of cubes.

IconMeans
PlantsGain plant cubes now
Production boxThe brown production box: raise or lower the production of what is inside

The six resources

MegaCredits

MegaCredits (M€) M€ is money: it pays for cards, standard projects, milestones and awards.

Steel

Steel Steel pays only for cards with a Building tag building tag, at 2 M€ each. You may mix steel and M€; overpaying with steel gives no change.

Titanium

Titanium Titanium pays only for cards with a Space tag space tag, at 3 M€ each, the same way.

Plants

Plants As an action, turn 8 plants into a Greenery tile greenery tile, which raises oxygen (Actions).

Energy

Energy Many cards use energy, either as an action cost or as a decrease in energy production. At the start of each production phase all your energy cubes become heat.

Heat

Heat As an action, spend 8 heat to raise the temperature 1 step (Actions).

Reading a card

A corporation card and a project card with the rulebook's numbered parts

  1. Tag — the card’s categories
  2. Starting conditions (corporations) — your starting M€, resources, production, and sometimes a fixed first action
  3. Effect or action — the blue-ribbon box: an ongoing effect, or an action you may use once per generation
  4. Flavour text — background only
  5. Cost — what you pay to play it from your hand
  6. Requirement — what must be true when you play it
  7. Immediate effects — what happens once, when you play it
  8. Victory points — counted at the end

If you are unsure what a card does, read the text in brackets.

Card types

FrameTypeAfter you play it
GreenAutomatedStack it face up so its top row shows; its tags keep counting
BlueActiveKeep its top panel visible: its effect or action keeps working
RedEventTurn it face down in your own event pile; its tags no longer count

The game has 17 corporation cards and 208 project cards (Cards & Components).

Card effects

Tags

Cards have 0–3 tags. Tags have no rules of their own: other cards, milestones and awards count them, and building and space tags let you pay with steel and titanium.

TagNameWhat it is about
Building tagBuildingConstruction on Mars; pay with steel
Space tagSpaceSpace technology; pay with titanium
Power tagPowerEnergy production or handling
Science tagScienceScientific knowledge; some cards require science tags
Jovian tagJovianInfrastructure in the outer solar system
Earth tagEarthActivities on Earth
Plant tagPlantPlants and other photosynthesising life
Microbe tagMicrobeMicrobes for specific purposes
Animal tagAnimalAnimals; these cards usually score VP
City tagCityPlaces a city tile
Event tagEventA one-time event; red card, face down after play

Your tags are the ones on your corporation and your face-up green and blue cards. An event’s tags count only while it is being played.

Resources on cards

Animals, microbes and other card resources live on cards, not on your player board. A card can hold a resource only if it uses it, in an action or for VP. If a card gives you such resources and you have no card to hold them, you lose them but may still play the card.

Red border

An icon with a red border can target any player, you included.

Red-bordered iconRule
Resource removalOptional: remove up to the amount, from one player, or none
Production decreaseMandatory: lower it in full for one player — yourself if no one else can
TileCounts or targets all players’ tiles
TagCounts all players’ cards with that tag

Removed resources go back to the supply; you get them only when the card says steal.

Rules

↑↓ to move · Enter to open · Esc to close

Drag to move · tap to close