Oseram
There’s no canonical record of the origins of the Oseram, whose home territory is to the north of the Carja Sundom, capitaled by the city of Mainspring. A single datapoint of the Old Ones gives a brief mention of the beliefs of the Oseram: a group which believes in the mechanical interconnectedness of the world, driving the need to understand it so it can be maintained and improved. The Oseram are the most technologically advanced of the tribes in the area, accomplished in metalworking and engineering. They also have a proclivity for delving the ruins of the Old Ones, which they do not fear or avoid as the other tribes do.
The Oseram became vital allies to Avad during his brief flight from Jiran’s persecution, thanks to Avad’s relationship with Ersa and Erend, as well as Avad’s desire to end the Red Raids constantly attacking Oseram lands. Avad convinced some, but not all, of the Oseram warlords to aid him in retaking Meridian, sending their freebooters back with him. The threat of advanced Oseram weaponry sent the Shadow Carja running, cannons raining fire and explosions from afar.
The Oseram and Carja have strengthened their ties since then, with Oseram even providing escorts for Avad’s peace-seeking Sun-Priest envoys as they traveled to the other tribes.
Culture
Oseram pride themselves on their craft, their loyalty, their scholarship, and their honesty. Their internal government is much looser than their monarchic Carja neighbors, or their Matriarchal Nora forebears. It is hinted that Oseram organize into work parties for specific tasks, implying something more federated and organization-driven than family- or politics-driven. Similarly, the Oseram share a disdain for both spiritualism and organized religion.
Oseram follow a patriarchal structure, with many men viewing women as little more than prizes or property to be claimed. Women can have many of the same productive jobs as men, but they cannot hold governmental positions, and are always in danger of being “claimed”. Oseram settlements are ruled by small groups of “ealdormen”, who debate and set policy in addition to adjudicating disputes. Petitioning the ealdormen involves aggressive debate, to the pointing of shouting until your point is heard and acknowledged.
Oseram are known, at least by the Carja, to enjoy their alcohol and reveries. Conversely, Oseram see the continual loss of their numbers to the “easy living” of the Carja as a serious problem.
Oseram in Skyline
As not much is known of the Oseram beyond their penchant for engineering, Skyline does not make significant alterations to their lore, though it does rely on quite a bit of non-canon conjecture.
While most Oseram characters in HZD were shown with heavy focus on crafting and engineering, players should keep in mind that some were not. Ersa, for example, was shown to be a strong and capable Oseram warrior, regardless of any crafting skill. It should be perfectly acceptable to play an Oseram with limited tinkering or engineering ability.