You see it most clearly in those webnovels where the city itself breathes with the god. It's less about throwing lightning bolts and more about feeling the subway rumble underfoot, knowing which alleyways hold secrets, sensing when a new mural goes up overnight. The god's power is tied to civic memory—the ghost of a long-gone diner on a corner, the weight of history in a preserved brick facade. I think the really compelling ones make the city the character, and the god is just its voice. That recent serial 'Lanes' did this beautifully; the protagonist's strength waxed and waned with neighborhood pride festivals and died a little when a beloved bookstore closed. Their power wasn't combat-oriented at all, but about preservation, connection, subtle influence. It felt truer to the concept than a deity just ruling a geographical zone.
Western urban fantasy often treats it like a mayor with magic, but the Chinese xianxia or Japanese light novel takes I've stumbled into weave it into municipal systems. The god might draw power from official seals, from the flow of bureaucratic paperwork, from the collective belief of citizens paying taxes or using public transit. There's a mundanity to it that's weirdly profound. The god isn't above the city; they're embedded in its pipes and power lines, its zoning disputes and nightlife. That's the portrayal that sticks with me—not omnipotence, but a deep, complicated symbiosis.