Terraforming Mars: Ares Expedition - Crisis Expansion

Terraforming Mars Ares Expedition: Crisis, players will play as corporations,just as in the originalAres Expedition. You choose phases and play project cards asnormal. The difference is players are working together to keep Mars habitable aftera natural disaster has landed the planet in crisis. Every round, a new Crisis card willbe drawn that will require the players to achieve a certain goal to remove that crisisfrom play. Each turn that a Crisis card is not completely dealt with, it will lower oneor more of the terraforming metrics that keep Mars habitable.Handle all the crises as they arise. Eventually, a Crisis card will be drawn that allowsthe players to win the game once they have completed re-terraforming Mars.