So far as we can officially tell, but...we've got indications that there's a lot more of these games happening out there.

[A deep breath.]

The mastermind wanted to erase her entire reality. Her reason was...messed up and complicated, she and her ilk thought reality was a prison. Elenwen's game involved killing the gods of her multiverse through proxies-namely us. Her attempt caused space and time to collapse, multiple simultaneous games happened, and...she ultimately almost succeeded.