Terraforming Mars cheat sheet

• Each step you raise: +1 TR. TR starts at 20 (1 VP per step, and your basic income).
• At its goal a parameter can't rise (no TR); you may still play the card.
• Bonus steps (the player who raised it takes them): 8 % oxygen → temperature +1 step (+1 TR); heat-production bonuses on the temperature track; 0 °C → you place an ocean tile (+1 TR and its placement bonus).

1. Player order: first-player marker moves clockwise; generation marker +1.
2. Research: draw 4, buy 0–4 at 3 M€ each, discard the rest face down. No hand limit.
3. Action: 1 or 2 actions per turn, clockwise, until everyone has passed. Passing puts you out for the generation.
4. Production (all at once): energy → heat; M€ = TR + M€ production; then all other production; remove markers from used action cards.

Generation 1 skips phases 1 and 2.

1. Play a card: check requirements → pay the cost first → effects in any order → place it (blue active, green automated, red event face down).
2. Standard project
3. Claim a milestone
4. Fund an award
5. Blue card action (red arrow): once per generation; pay what's left of the arrow, get what it points to, mark it with a player marker. Corporations work the same way.
6. 8 plants → greenery (oxygen +1, TR +1)
7. 8 heat → temperature +1 step (TR +1)

Any mix, even the same action twice.

• Buy into hand for 3 M€; play it for its printed cost. Requirements only count when you play it; some are a maximum.
• You must be able to do everything it says (e.g. lowering your own production). Red-framed production cuts aren't optional: if no opponent can lose it, cut your own or don't play it.
• You may still play it if it raises a parameter already at its goal, adds resources you can't collect, or has red-bordered "remove resources" you can't or don't want to do.
• Red-framed removals: all, part or none, all from one player. Place its tile if you can; with no legal area, still play it.
• Event tags only count while the event is being played.

Always available; each can be used several times per generation. Steel and titanium can't pay for them.

• Take the bonus printed on the area, plus 2 M€ per adjacent ocean (even when placing an ocean).
• Ocean: only on the blue reserved areas (12 areas, 9 tiles); no other tile goes there. +1 TR. Owned by nobody.
• Greenery: next to one of your tiles if possible, otherwise anywhere. Oxygen +1 and TR +1 (no TR if oxygen can't rise). 1 VP, plus 1 VP to each adjacent city.
• City: never next to another city. 1 VP per adjacent greenery, whoever owns it.
• Special: as the card says. 3 areas are reserved for specific cities (Noctis City always goes on its reserved area, even next to another city). Mark owned tiles with your marker.

• Mix with M€; no refund for overpaying.
• M€ income = TR + M€ production. Only M€ production can be negative, never below −5. Production can pass 10.
• Card resources (animals, microbes…) sit as cubes on their card.

• Claim for 8 M€ when you qualify
• 5 VP
• max 3 of 5 claimed
• one owner each