[quote=@Inlaa]
Is this still open? I'd like to express interest. The concept I have in mind is a faction of rioters, demonstrators and cultists that believe the ancient Marshans are speaking to them and want them to either make the people of Mars more at harmony with the planet or else remove them from the planet. They'd be purposely digging for old Marshan artifacts, believing they hold some sort of power that can be used against everyone else. (I'm assuming such a power doesn't exist, and that [i]works.[/i])

If that's a bit too oddball, I'm also interested in making a newly-freed (thanks to the fall of Earth's central government) penal colony of miners and metalworkers that would be 100% happy to bargain with thieves, pirates and the black market. They'd be a colony with the potential to become pirates or mercenaries. The base would probably be an underground mining complex that's been turned into home.
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I like both your ideas. Although I haven't written anything into the setting concerning ancient Martians. But its something to consider. I would say probably go with idea #2 and make a character based off of idea #1. Maybe the miners discover something...