So... is Soukou Musume Senki finished or not?
NO, it is not finished.
Why?
MangaUpdates contains information about the anime adaptation and indicates that it is incomplete.
Watching Order (by release date)
Here you have all the anime relations we detected ordered by release date, so you can see the reason for this status in context and also use it as watching order.
The mangas and the non-core contents are excluded by default, but you can enable them by clicking the buttons below:
Synopsis
Soukou Musume Senki follows Riko, an ordinary girl, who unexpectedly finds herself transported to an alternate Japan.
A chance encounter with an LBX model kit triggers this event, gifting her a special exosuit based on the model.
She quickly learns that this world is under attack by dangerous creatures called Mimesis.
Rescued by a team of girls also equipped with LBX-based exosuits, Riko joins their unit, the "Soukou Musume."
The anime then chronicles their battles against the Mimesis and the development of their friendships as they fight together.