Is Elysia playable?

Excuse me, could you please clarify something for me? I came across the mention of "Elysia" and I'm curious to know if it's something that can be played, perhaps in the realm of video games or some form of interactive entertainment. Could you elaborate on whether "Elysia" is indeed playable, and if so, what kind of platform or medium is it accessible on? I'm quite intrigued by the name and would love to learn more about it.