Can I ask... If Terrans never developed space travel, and the Earth is destroyed before the beginning of the campaign, and the player is not a human... Why should we care anything at all about the Earth or what happens to it?
@Galemp, I answer a question for you.
More than 150,000 years ago, the humanoid UIMS themselves draw the analogy of children murdering their parents, with Number Five saying "But parents have to die. It's the only way children come into their own."
Number Six speaks of humanity's children returning home in the Miniseries.
The children is the UIMS.
And the player is one of them, since the Shivans, like the UIMS, are constructed by another entity.
I'm posting this answer as a courtesy to anyone and for any agreements and disagreements.
EDIT: One clue to the explanation of the subtitle for the first campaign of Shattered Stars, A Deepness Within.
Because of the underperforming of the 2018 Mortal Engines film, everything appeared on the film will be gone by this time of the campaign. This means everything is gone. Tom and Hester are traveling onboard the Jenny Haniver when the UIMS attack on Earth occured. They died. The UIMS then rendered the surface uninhabitable, just like what the Shivan Lucifer did to Vasuda Prime during the Great War.