|This article is about a/an villain base in Kamen Rider Decade.|
The Dai-Shocker Castle was a fortress and the original base of Dai-Shocker. It was located in the World of Decade, the home world of Tsukasa Kadoya/Kamen Rider Decade, the original Great Leader of Dai-Shocker.
It was destroyed in the battle with All Riders and Dai-Shocker, a total of 25 Kamen Riders performed the All Rider Kick to destroy the fortress along with Nobuhiko Tsukikage/Shadow Moon, who was left pinned to the fortress after being defeated by Kamen Rider Double, the (at the time) new Kamen Rider who came as Shadow Moon was giving Decade and Kuuga a hard time, and took his leave just after defeating him and making himself known to the two riders.
The Dai-Shocker remnant called Super Shocker used the Super Crisis Fortress, an altered version of the Crisis Empire's Crisis Fortress. Later, another rebuilt Crisis Fortress served as the base of a revived Dai-Shocker.