asked, "Mr Gaider, I dont know if this has been asked before, but what is the name of the planet that Dragon Age takes place on?"
At least, to the people of Thedas. They don’t really have a concept of a “planet”, however… to them, there is the sky and the earth and Thedas. “Thedas” itself is an old Tevinter word that meant “the land beyond the empire” and originally referred to the frontier until it eventually came to encompass the entire continent… which is their entire world, at present.
I’m sure once the concept of the larger world becomes a thing, the separation of Thedas from the rest of the world will become a more important thing to distinguish. Considering our own words for our planet are rooted in our words for “the ground under our feet”, it’s unlikely to be as complicated as you’d imagine.