Crisis: Mars is a small 2 1/2 hour megagame for up to 18 players, played in small teams with an emphasis on negotiation and simple rules.
The year is 2241 and humanity has colonised the inner solar system with space stations and mining in the asteroid belt, and a colony and terraforming project on Mars. In recent years a growing movement on Mars is pushing for independence from the Unified Nations of Earth and they have just gained a majority in the Martian senate. You will take the role of an actor on the edge of this brewing conflict. You will have limited opportunity to change its course but conflict gives you the chance to achieve your own goals.
The version 1.0 player's rulebook is available freely from this link:
You can purchase the full pack of PDFs files to run the game for £15 using this link:
(Once you have paid you will be sent a link to redeem your copy on DriveThruRPG.)