Warforged/Automachon

In Ethindras, the warforged were created to help rise the empire from the ashes after the age of gods and monsters.
However, as the ages continued and resourced poured into production there was a breakthrough not founded anywhere else in Stellarium. The constructs have become fully sentient.
Despite having been made from metal and dragonshards, they can still feel pain as any organic living creature. They were originally created to ensure the survival of sentient beings, but now they live and work alongside them.