No, Autumn is not a goth band, because they play Gothic Metal, Alternative/Progressive Metal/Hard Rock, while goth music consists of Gothic Rock and its derived genres, like Deathrock, Darkwave, Ethereal Wave, and Coldwave.

If you want to dive into the goth music scene, some of the bands that might appeal to you if you enjoy Autumn are Die Laughing, Diva Destruction, and Inkubus Sukkubus.