Yes, Ego Eris is definitely a goth band because most of their albums belong to the Darkwave genre, which is a core subgenre of goth music. Albums like Memento Mori and In Vino Veritas are examples of their goth sound.
Ego Eris is located in Brazil, Recife, active in 2016 — present. You can find more information about Ego Eris on their GothDB band page.
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