Last week I posited that the Krenim time annihilator in STO was the nuke-equivalent that sparked the Temporal Cold War.
I have now played the latest STO mission, “Butterfly,” in which the player and Captain Nog deploy the Krenim weapon, try to rewrite history, and end up making things worse. Eventually they are able to mostly restore the prior timeline, but at a cost: in the restored timeline, the Tuterian species, an ally of the Krenim, were wiped out by the Borg 20 years ago.
At the time they were destroyed, the Tuterians were trying to escape by imitating the Solanae, which is to say trying to transform themselves to be able to survive in another universe.
This is what the one Tuterian character in the game looks like:
And this is what the Sphere Builders, a faction in the Temporal Cold War who lived in another universe, looked like in Star Trek: Enterprise: