火星，太阳系的行星之一，同时也是我们太阳系中可以找到的与地球最为相似的行星。虽然火星质量只是地球的11%，体积只是地球的15%，但是6794千米的直径却接近地球直径的一半，表面积相当于地球陆地的面积，地面的重力加速度相当于地球的40%。而且火星的自转周期为24.62小时，与地球24小时的自转周期极为接近，让火星具有类似地球的昼夜交替现象，这为未来人类移民火星生活提供了便利。

公元2400年人类开始改造火星，由地球政府主办的大型公司，发起了各类科研项目用以提高火星温度，氧气浓度和海洋覆盖面积，直到改造成适合居住的环境。而你将代表一间公司一同参与这改造计划……

殖民火星的本质是一个具有可变玩家能力的卡牌游戏。玩家选择一个能力别具一格的公司后开始参与改造计划。游戏中通过各种资源互相转换，金钱，钢铁，钛合金，绿化，电力，热能最终用以提升各项环境指标，将所有指标都提升到可供生存的情况下游戏结束。

用你的能力去改造火星吧！

Description from Boardgamegeek:

In the 2400s, mankind begins to terraform the planet Mars. Giant corporations, sponsored by the World Government on Earth, initiate huge projects to raise the temperature, the oxygen level, and the ocean coverage until the environment is habitable. In Terraforming Mars, you play one of those corporations and work together in the terraforming process, but compete for getting victory points that are awarded not only for your contribution to the terraforming, but also for advancing human infrastructure throughout the solar system, and doing other commendable things.

The players acquire unique project cards (from over two hundred different ones) by buying them to their hand. The projects (cards) can represent anything from introducing plant life or animals, hurling asteroids at the surface, building cities, to mining the moons of Jupiter and establishing greenhouse gas industries to heat up the atmosphere. The cards can give you immediate bonuses, as well as increasing your production of different resources. Many cards also have requirements and they become playable when the temperature, oxygen, or ocean coverage increases enough. Buying cards is costly, so there is a balance between buying cards (3 megacredits per card) and actually playing them (which can cost anything between 0 to 41 megacredits, depending on the project). Standard Projects are always available to complement your cards.

Your basic income, as well as your basic score, is based on your Terraform Rating (starting at 20), which increases every time you raise one of the three global parameters. However, your income is complemented with your production, and you also get VPs from many other sources.

Each player keeps track of their production and resources on their player boards, and the game uses six types of resources: MegaCredits, Steel, Titanium, Plants, Energy, and Heat. On the game board, you compete for the best places for your city tiles, ocean tiles, and greenery tiles. You also compete for different Milestones and Awards worth many VPs. Each round is called a generation (guess why) and consists of the following phases:

1) Player order shifts clockwise.
2) Research phase: All players buy cards from four privately drawn.
3) Action phase: Players take turns doing 1-2 actions from these options: Playing a card, claiming a Milestone, funding an Award, using a Standard project, converting plant into greenery tiles (and raising oxygen), converting heat into a temperature raise, and using the action of a card in play. The turn continues around the table (sometimes several laps) until all players have passed.
4) Production phase: Players get resources according to their terraform rating and production parameters.

When the three global parameters (temperature, oxygen, ocean) have all reached their goal, the terraforming is complete, and the game ends after that generation. Count your Terraform Rating and other VPs to determine the winning corporation!