Ludexv2026.11.01-65114139Terraforming MarsOfficial rulebook ↗

Visitors

Loading…

Teach the Game

A five-minute script: raise temperature, oxygen and oceans for terraform rating, build an engine of project cards, and score the most victory points.

How you win

“Each of us runs a corporation paid by the World Government to make Mars livable. Together we push three global parameters to their goals: temperature, oxygen and oceans. Every step you raise yourself bumps your terraform rating, and that rating is both your income and your base score. On top of it you score cities, greeneries, milestones, awards and project cards. When all three parameters are done, the game ends after that generation and the most victory points wins.”

The boards

The game board with the rulebook's numbered parts

  1. Terraform rating track — everyone starts on 20; it is your income and your base score
  2. Generation track — the generation marker climbs the same track, one step per round
  3. Solo start — the solo game starts at TR 14 and ends after generation 14
  4. Oxygen track — 0 % to 14 %
  5. Ocean stack — the 9 ocean tiles wait here
  6. Temperature track — −30 °C to +8 °C, 2 °C per step
  7. Bonus steps — reaching them gives a bonus: heat production, an ocean or a temperature step
  8. Standard projects — six projects anyone can buy at any time
  9. Milestones and awards — 5 VP races for the whole table
  10. Placement bonuses — what you collect when you put a tile there
  11. Ocean areas — the blue areas take only ocean tiles
  12. Reserved city areas — only the city from the card of that name goes there

Player board with the rulebook's numbered parts

  1. Production tracks — what you get each production phase
  2. MegaCredits — money; your income is M€ production plus TR
  3. Steel — worth 2 M€ towards building cards
  4. Titanium — worth 3 M€ towards space cards
  5. Plants — 8 make a greenery
  6. Energy — used by cards; left-over energy turns into heat
  7. Heat — 8 raise the temperature

A round

A round is a generation, in four phases (How to Play):

  1. Player order: the first-player marker moves one seat clockwise; the generation marker goes up one.
  2. Research: everyone draws 4 cards and buys any of them at 3 MegaCredits (M€) each.
  3. Action: in turn, take 1 or 2 actions, round and round the table, until everyone has passed.
  4. Production: energy turns into heat, then everyone collects M€ equal to TR + M€ production and every other resource they produce.

Generation 1 skips player order and research: setup already did them.

The seven actions in one line each (full list):

ActionWhat it does
Play a cardMeet its requirement, pay its cost, do its effects
Standard projectBuy a fixed effect from the board: sell cards, energy production, temperature, ocean, greenery, city
Claim a milestone8 MegaCredits (M€) for 5 VP, if you meet it; only 3 of the 5 can be claimed
Fund an award8, 14 or 20 MegaCredits (M€); at the end the leader gets 5 VP, second 2 VP
Blue-card actionUse one action from a blue card or your corporation, once per generation
Plants into greenery8 Plants → a Greenery tile greenery, which raises Oxygen oxygen
Heat into temperature8 Heat → raise Temperature temperature one step

Taking no action means you pass: you are out until the next generation.

How the game ends

When temperature +8 °C, oxygen 14 % and all 9 oceans are reached, the generation is played to its end and production happens as usual. Then everyone gets one last chance to turn plants into greeneries, in player order, and the game is scored.

Ways to score

SourceVictory points
Terraform rating (TR) Terraform rating1 VP per step of your final TR
Greenery tile Greenery tile1 VP each
City tile City tile1 VP per greenery next to it, anyone’s
Milestone5 VP each you claimed
Award5 VP for first, 2 VP for second (no second place with two players)
Victory points CardsThe VP printed on your played cards, events included; some count resources or tags
Negative cardsA few cards cost VP; they count against you

Tie: most M€ left wins.

What each resource is for

ResourceWhy you need itHow you get itHow you use it
MegaCredits (M€) MegaCreditsPays for cards, projects, milestones and awardsTR + M€ production every generationSpend on everything
Steel SteelMakes building cards cheaperSteel production, placement bonuses2 M€ each towards cards with a Building tag building tag
Titanium TitaniumMakes space cards cheaperTitanium production, placement bonuses3 M€ each towards cards with a Space tag space tag
Plants PlantsGreeneries are TR, VP and feed your citiesPlant production, placement bonuses8 plants → a greenery
Energy EnergyMany cards and actions need itEnergy productionSpend on cards; left-over turns into heat
Heat HeatTemperature steps are TRHeat production and every unspent energy8 heat → one temperature step
Card CardsYour projects: production, effects and VPResearch (3 M€ each), card effectsPlay them by paying their printed cost
Terraform rating (TR) TRIncome and scoreRaising parameters, some cardsCounts automatically

Teaching tips

Rules

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

Drag to move · tap to close