I've been posting dev logs explaining the different character creation options available to players in Arrhenius. To start, players can choose from 5 different Heritages when they create a new character:
Dorrem - https://jesseharlin.itch.io/arrhenius/devlog/662010/children-of-the-ice-part-1-the-dorrem
Ekavir - https://jesseharlin.itch.io/arrhenius/devlog/663039/children-of-the-ice-part-2-the-ekavir
Muter - https://jesseharlin.itch.io/arrhenius/devlog/665303/children-of-the-ice-part-3-muters
Ozzit - https://itch.io/blog/669492/children-of-the-ice-part-4-ozzits
Scab - https://itch.io/blog/674312/children-of-the-ice-part-5-scabs