The world of Octas has much life.
This set of documents lists a tiny fraction of it.
While more advanced players may have reason to familiarise themselves with the Sapient Species document for the purposes of creating playable non-human characters, other documents in this set refer to the non-playable beings that players may prefer to learn about organically as they play the game itself. As such, it is recommended that only GMs read those documents, initially at least.