Yes. With ante- being Latin prefix for
prior to in time or
in front of in space. So,
before our world is good, or
ancestors'/antecessors' world.
It also kind of fits the idea of bringing up the Earth as it was before civilization, and it also fits the storyline of the game ...
Besides, surely because of the ancient obsolete prefix, it was one of very few domain names available that are short, don't pronounce too awkwardly and still bear some relation to the game and the world
Needs some getting used to though.