The Ark Project: what is its end? Humans from all eras of history wake up in a wild landscape, with long gone creatures like Dinosaurs free to roam. Will they build something better? Become Savages, or just fail to survive?
Type: BlossomA trio of Obelisks tower into the skies of each and every Ark. Red, blue, and green. These allow Ark inhabitants to travel between Arks and access strange trials the overseers offer, for reasons that remain unknown.
Technology differs wildly amidst the Tribes, everything from Stone Age to works akin to twentieth century Earth - and oddities surpassing even that, a category known as Tek that runs on the mysterious Element material.
Ark natives have no idea how, but sometimes the dead return to them. They simply reappear somewhere ... though not always in a timely fashion. Overall this is rare, and clearly up to the whims of the gods (or whatever 'runs' the Ark).
The Einherjar
A Small tribe hailing from a northern cavern, lead by Jarl Bergfalk, who claims viking heritage. He's keenly aware of the dangers of direct conflict, seeking to avoid it if at all possible. The tribe focuses on quality craftsmanship and breeds small-to-mid creatures for labour and war. They're among the forefront of off-world tourism and hunt projects in exchange for odd and rare materials.
Tide Hunter Inc.
Lead by William Mason, 19th century English industrialist, this coastal-based seagoing tribe focus on exploration and mercenary services for needed resources. Seemingly keen to exploit the Ark's nigh-unlimited biological resources.
Unbroken
Lead by George Rogers, a slave-turned-bandit of the old American West, this small solitary tribe just wishes to live in peace. Though generally friendly to visitors who respect this wish of theirs, they're also infamous for ruthlessly blowing anything that seeks to invade or raid to kingdom come with their mastery of explosives.
The Warriors of Valhalla
A rumour, a wild tale told around campfires... right? Nope. They very much exist, and are armed with advanced technology. This mysterious group will manipulate the other tribes as it pleases, and hopes to find a way to cut off the Ark's connection to the World Tree.
Others
Ark: Ragnarok is vast and full of many other tribes. Some large, some small, and some have taken to it far better than the times they came from.