You seek knowledge about the other nations of the world?
Sure! But you will probably need a map... here I have one.
[if alignment is not mentioned, they are neither god chainers nor god fearers, also much like Christianity didn't stop war in medieval Europe, being in the same belief when it comes to gods doesn't mean you cannot be enemies]
Kingdom of Mahayagah: Called Bird-men, living in the tallest mountain, they have adopted to hunt and even some of them ride the Poukai, a constant thread for the Arenujalapura, whom they threaten either through air or more specifically by the land connection they share with the island-city.
Phriman: The disunited tribes of whale-hunters who usually live outside of the archipelago, in the vast northern ocean, but due to whale migrations have moved in through the north.
Children of the Serpents: leathery-skinned people making their iron forges upon a dead god, venerate the Taniwha as sacred creatures, have convinced some to live with them.
The Krul: two groups of people. At the top of the society is the M’nao. The M’nao arrived within the last 100 years. They were warriors and hunters. They conquered the Lewa. The Lewa make up the bottom 70% of the population, acting as farmers, scavengers, and artisans. They are the wards of the M’nao clans. M'nao are chainers, the Lewa are fearers but they don't have power to stop the M'nao from chaining their god.
1. Matriarchy of Wa'hine-i-Roto: Society is led by female witchdoctors. These matriarchs have great magical abilities. Cannibalism is a common practice. Lead several wars against the Five Banners, never strong enough to defeat them - fearers
2. Stratocracy of Whetu: Tree-bark skinned people, live in caves in the hills of their island, run by a strict military hierarchy in answer to raids from the Phrimen. Constantly at war with Phrimen and Patupaiarehe, frienemies with L'wol and mistrustful of the Serpent-Children. - chainers
3. Kingdum of I'jur: Patupaiarehe run kingdom, constantly fighting with its human neighbor over the forests in the middle of the island and fighting with the Whetu.
4. The Ku'lra: A confederacy of small villages, that due to the lack of resources on their part of the island are fighting with the Patupaiarehe over land, and live in small obsidian and magic created villages under the water itself, defended by the bay that their part of the island naturally forms. Trade with the Tanum.
5. Empire of Zaiyah: Ruled by a ruānuku, the horned people of Zaiyah have already conquered three other states, their bodies morphed by magic and their leader, a hammer wielding giant believing that the way to stop Tinana Kau from overtaking them is to conquer more land. They are on a collision course with Danython.
6. The Mayirea: Another ruānuku run state, they have managed to chain two minor dieties, not enough to solve the Tinana Kau at home, but enough to gain the power to infuse other souls into the hollow bodies. As they started putting fish and animals' souls in bodies, even Patupaiarehe souls, they have created monstrous mindless abominations that bolster their forces, but ultimately they seek to gain the ability to cure their Tanana Kau. - Chainers
7. Realm of the Free: A mountainous democratic state, living in the high mountain with a volcano has made the people hardy, they can also withstand heat like the Danython, they worship a creature found only on their mountain, the Krama, with a body of a wolf with the head and wings of a bird. Some of them are born with wolf pelts. - Fearers
8. Riki Empire: The Rikimen are shrub-covered men from the Riki Empire have spread out form their humble island to conquer one of the largest empires in the region after the Children of Irka descended upon it in search of their goddess. - fearers
9. Skif'au State: Hunters and farmers, surrounded by powerful states, the Skif'au have for a long time been able to cling to power thanks to conquering and threatening the Inys Nanron, however with the Nanron now united raids and destruction by the Rikimen and their own island contested by an emerging Patupaiarehe kingdom, they seem to be on the verge of collapse.
10. Krnaerids: Newly-born Patupaiarehe Kingdom, united by their young King Krjnaer, who is rumored to be a physical manifestation of the Patupaiarehe shapeshifting trickster dolphin deity.
11. The MaTuatou Tribe: a small tribe, who's only claim to fame is that a rare bird lands there, the bird makes its nests of a combination of thing which ultimately when boiled, create a potent drug. The tribe trades that drug with the Shoal's raiders and pirates.
12. Cartodons: After a terrible plague wiped out the population of the island, their King went to visit the five banners, then locked himself in a cave chained its god, to draw form the powers of his god to restore his population, after being struck with the Tinana Kau as well. One night he dreamed that the tuna-fish emerged from the ocean and transformed into Humans. Upon waking up, he found his empty village's streets filled with young men and woman ready to serve, with scaly skin. He is currently in the process of conquering his island and is killing Patupaiarehe in the forests, having taken over all other kingdoms around. - chainers
13. Realm of Nu'kre Used to be a massive empire ruled, pushed away first by the Irkazu, then by Osidea and the latest losses were by the Krnaerids. They are still ruled by the dead body of their founder king, hoisted up on a golden throne. In reality, they are run by a council of elders, who claim to be interpreting the dead founder king.
14. Bu'hersson Republic: A rising industrial power, the smelters of the island have produced high quality goods for the region for a while, recently, due to their location, good tin deposits and copper mines, the Republic has seen a massive rise in their life-style, as well as allowing them to contract a bunch of mercenaries to booster their forces, to avoid invasions. - Fearers
15. The Motu Pokapū: The Pokapū island is not a country, it has thousands of Patupaiarehe on it, but this is their ancestral neutral ground, where they meet. No war is allowed here, the great kings are merely just another of the Patupaiarehe. And over time the humans have gone to accept that as well, turning the island as the location where the great storytellers meet and where discussions happen.
16. The Geloera Clans: An essentially hunter-gatherer culture, old as the hills of that mountainous island, and devoted followers of an ancient crocodile cult, claiming descent from that god, said to dwell deep beneath the bay - his teeth wash ashore as powerful relics. Through headhunting, cannibalism, and ritual they are powerful, but their constant wars with their neighbors means that they are few in number. The recent series of conflicts is born form the wish of their neighbors to chain the island and therefore the crocodile god, having lost some of their followers to the new banner-men. - God Fearers
17. Moeroa Kingdom: The long-time enemy of the Geloerai, the Moeroa are familiars, using various creatures to fight their wars for them, but recently their society has split over the issue of chaining, as a massive chunk of their familiars joined a new group seeking to chain the gods of their islands. For the first time in their history, the Moeroa might seek the friendship of the Geloerai. - God Feares
18. Haere Noa Faction: An hodgepodge organization of both Geloerai and Moeroai, gathered together with the express purpose of chaining the islands, initially formed entirely of Moeroai but after landing on the Geloera's island and convincing some of them to abandon the shark god their numbers have swelled. - God Chainers
19. Rākau: A civilisation of gardeners - who worship a very rare, powerful tree-borne god-creature - taking seeds of it to all new cities, where its roots become part of the architecture, its trunks the temples, its branches the watchtowers on the walls. Unfortunately, the tree itself's motives are unknown. Ruled by the "avatars" - men and women part-absorbed by the tree. - fearers