The war call you to fight. Multiple human people are in war to colonize this planet. The flesher colonies. The Fodol Colonies. The AlaphTech companies colonies. The Greater Guri Empire colonies. The Freelance an Junta Sheriffs Colonies.
The Human Crusaders of Golos also have bases across the dust valley.  Golos Crusaders wipe out any non-holy things. Radioman Remnants. Many terraforming, be each. Hostile wildlife made to fight each other. Spacers attacks.
Underground based. Or floating city, sea