The mechanic of power in the Hidden City, involving gaining influence/control over various groups and building power structures.
The rules are a slightly modified version of the rules used in Tourmaline
(Structures can only be circular if they contain a criminal group, which is different than the original mechanic)
The current board and PC-known free groups are here:
Utilities are one level higher up but not directly linked, to avoid spammers pressing the button.