KONOSUBA - An Explosion on This Wonderful World! is listed for 12 episodes according to BD/DVD listings : r/anime

Anime Phantasm

2023 Anime, Seasonal Chart

KONO SUBARASHII SEKAI NI BAKUEN WO! - ANIME TV SERIES DVD (1-12 EPS) (ENG DUB)

KONOSUBA Megumin Spinoff Gets Explosive Tie-In With Spicy Beef Soup Brand - Interest - Anime News Network

AmiAmi [Character & Hobby Shop] [Bonus] BD Kono Subarashii Sekai ni Bakuen wo! Vol.1 Completely Limited Production Edition w/Kurone Mishima New Illustration B2 Wall Scroll & 2 Acrylic Stands Set(Released)

KonoSuba: An Explosion on This Wonderful World!] Art Fan Book 2020 Spring (Art Book) - HobbySearch Hobby Magazine Store

KONOSUBA Art Style Comparisons: S1 vs Explosion (Ep 12) : r/anime

Konosuba: An Explosion on This Wonderful World!, Vol. 1 (light novel) eBook by Natsume Akatsuki - EPUB Book

KONOSUBA: An Explosion on This Wonderful World! New PV : r/anime