Delayed Purchase

Following the success of unmanned rover missions, the United Nations established the Department of Operations and Mars Exploration (D.O.M.E.). The first settlers arrived on Mars in the year 2037 and in the decades after establishment Mars Base Camp, private exploration companies began work on the creation of a self-sustaining colony. As chief astronaut for one of these enterprises, you want to be a pioneer in the development of the biggest, most advanced colony on Mars by achieving both D.O.M.E. mission goals as well as your company’s private agenda.

In the beginning, you will be dependent on supplies from Earth and will have to travel often between the Mars Space Station and the planet's surface. As the colony expands over time, you will shift your activities to construct mines, power generators, water extractors, greenhouses, oxygen factories, and shelters. Your goal is to develop a self-sustaining colony independent of any terrestrial organization. This will require understanding the importance of water, air, power, and food — the necessities for survival.

Do you dare take part in humankind’s biggest challenge?

On Mars is played over several rounds, each consisting of two phases - the Colonization Phase ​and the Shuttle Phase​.

During the Colonization Phase, each player takes a turn during which they take actions. The available actions depend on the side of the board they are on. If you are in orbit, you can take blueprints, buy and develop technologies, and take supplies from the Warehouse. If you are on the surface of the planet, you can construct buildings with your bots, upgrade these buildings using blueprints, take scientists and new contracts, welcome new ships, and explore the planet’s surface with your rover. In the Shuttle Phase, players may travel between the colony and the Space Station in orbit.

All buildings on Mars have a dependency on each other and some are required for the colony to grow. Building shelters for Colonists to live in requires oxygen; generating oxygen requires plants; growing plants requires water; extracting water from ice requires power; generating power requires mining minerals; and mining minerals requires Colonists. Upgrading the colony’s ability to provide each of these resources is vital. As the colony grows, more shelters are needed so that the Colonists can survive the inhospitable conditions on Mars.

During the game, players are also trying to complete missions. Once a total of three missions have been completed, the game ends. To win the game, players must contribute to the development of the first colony on Mars. This is represented during the game by players gaining Opportunity Points (OP). The player with the most OP at the end of the game is declared the winner.

"You are a monarch, like your parents before you, a ruler of a small pleasant kingdom of rivers and evergreens. Unlike your parents, however, you have hopes and dreams! You want a bigger and more pleasant kingdom, with more rivers and a wider variety of trees. You want a Dominion! In all directions lie fiefs, freeholds, and feodums. All are small bits of land, controlled by petty lords and verging on anarchy. You will bring civilization to these people, uniting them under your banner.

But wait! It must be something in the air; several other monarchs have had the exact same idea. You must race to get as much of the unclaimed land as possible, fending them off along the way. To do this you will hire minions, construct buildings, spruce up your castle, and fill the coffers of your treasury. Your parents wouldn't be proud, but your grandparents, on your mother's side, would be delighted."

—description from the back of the box

In Dominion, each player starts with an identical, very small deck of cards. In the center of the table is a selection of other cards the players can "buy" as they can afford them. Through their selection of cards to buy, and how they play their hands as they draw them, the players construct their deck on the fly, striving for the most efficient path to the precious victory points by game end.

Dominion is not a CCG, but the play of the game is similar to the construction and play of a CCG deck. The game comes with 500 cards. You select 10 of the 25 Kingdom card types to include in any given play—leading to immense variety.

—user summary

Part of the Dominion series.