Fortuna and the Orb Vallis
The underground city of the Solaris workers living under Corpus debt, and the terraformed valley of Venus.
A body in debt
The Solaris can lose parts of their bodies against their debts. Their 'rigs' are the physical shape of economic exploitation; keeping their real heads inside the torso carries the themes of identity and shame.
United and Vox
Solaris United runs the workers' resistance, Vox Solaris the more secret and more serious operations. The Tenno relate to the two layers at different levels of trust.
The ecology of the Vallis
Corpus activity and war disrupt local life. The conservation assignments show that an open world is not only a resource field but an ecosystem to be won back.