God of the Sea is most useful for civilizations such as the Australians, Dutch, English, Indonesians, Norwegians, and Phoenicians, who will often have easy access to water-based resources thanks to unique features that encourage them to found and develop coastal cities. It's also one of the best pantheons for the Māori, whose Fishing Boats already provide extra Food and trigger Culture Bombs.
More indirectly, the Japanese can also make good use of this pantheon, thanks to Hojo Tokimune's leader ability giving military units defending coastal areas a Combat Strength boost which should help ensure their water-based resources are less vulnerable to pillaging. (Not to mention that enemy naval and embarked units will have to worry about little things like Hurricanes!)
This Pantheon's main downside is that it may take more time (or Gold) to get all the marine resources available to a city properly online than it usually does to get multiple land-based resources properly set up. On the other end, once you reach the Future Era, well-placed Seasteads will compliment it quite nicely, as they essentially generate 2 additional Production for each adjacent Fishing Boat.
|Religions and Pantheons in Civilization VI|
City Patron Goddess • Dance of the Aurora • Desert Folklore • Divine Spark • Earth Goddess • Fertility Rites • Fire Goddess • God of Craftsmen • God of Healing • God of the Forge • God of the Open Sky • God of the Sea • God of War • Goddess of Festivals • Goddess of the Harvest • Goddess of the Hunt • Initiation Rites • Lady of the Reeds and Marshes • Monument to the Gods • Oral Tradition • Religious Idols • River Goddess • Religious Settlements • Sacred Path • Stone Circles