It had one expansion, The Titans, and then vanished into obscurity, its vast potential largely wasted.
It deserved to go on to become one of the great franchises of the real time strategy genre, but for whatever reason, it didn’t. It spurred an interest in ancient mythologies (especially Norse mythology) that continues to this day.
It took everything I loved about the excellent Age of Empires series and spiced things up with the addition of spectacularly powerful god powers and myth units. Age of Mythology was a very important game in my youth.