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Seasons & episodes
Searching for watch Deca-Dence season 1 online? Use the episode list below (legal-only availability varies by region).
Where to watch “Deca-Dence” (2020) online legally? See US streaming options first, plus English-region fallbacks.
Deca-Dence first aired in 2020 • originally associated with AT-X • 1 season • 12 episodes • around 24 minutes per episode • status: Ended.
If you searched for “watch Deca-Dence online” (2020), the safest approach is to verify legal availability in your region (US first, then English-region fallbacks).
It sits in the Animation, Drama, Action & Adventure space, which helps set expectations for tone and pacing.
Ratings vary by audience taste—check the synopsis and cast to see if it matches what you like.
This page includes season navigation, episode list, cast, trailer (when available), and legal provider hints to help you decide quickly.
Synopsis
Many years have passed since humanity was driven to the brink of extinction by the sudden emergence of the unknown life forms Gadoll. Those humans that survived now dwell in a 3000m-high mobile fortress Deca-dence built to protect themselves from the Gadoll threat. Denizens of Deca-dence fall into two categories: Gears, warriors who fight the Gadoll daily, and Tankers, those without the skills to fight. One day, Natsume, a Tanker girl who dreams of becoming a Gear meets surly Kaburagi, an armor repairman of Deca-dence. This chance meeting between the seemingly two opposites, the girl with a positive attitude who never gives up on her dreams and the realist who has given up on his, will eventually shake the future course of this world.
Keywords
monster, dystopia, steampunk, survival, kaiju, machinery, anime, retrofuturism, adventure.
Stills
Similar series
Gachiakuta, Made in Abyss, Listeners, revisions, Galaxy Express 999, Claymore, Kabaneri of the Iron Fortress, Tengoku Daimakyo.
Main cast