"Spider, but so what? The Maze's Overlord" Collaboration with the Anime "Mushoku Tensei: Isekai Ittara Honki Dasu" Launches
Note: the original Japanese article can be found at:
https://www.4gamer.net/games/836/G083638/20251102003/
| 2025/11/02 10:04 (UTC)
But I’m a Spider, So What? The Dungeon’s Overlord
Publisher: CTW (G123)
Release Date: November 1, 2025
＜The following content is published exactly as released by the manufacturer＞
“But I’m a Spider, So What? The Dungeon’s Overlord” announces collaboration with the anime “Mushoku Tensei: Jobless Reincarnation”!
Choose between Roxie and Silfiette—whom will you pick?
CTW Co., Ltd. has launched a special collaboration event for its browser game, “But I’m a Spider, So What? The Dungeon’s Overlord,” currently popularly distributed by G123, in partnership with the hit anime “Mushoku Tensei: Jobless Reincarnation.”
A collaboration event between the game “But I’m a Spider, So What? The Dungeon’s Overlord” and the anime “Mushoku Tensei: Jobless Reincarnation” has officially begun!
During the event period, you can use “Rudeus” as your main character’s skin. Additionally, logging in will reward you with “Paulo” as a companion. Furthermore, completing missions will allow you to recruit both “Roxie” and “Elinarize.”
Moreover, an exclusive special event is also underway: choose either Roxie or Silfiette to join missions, raise your affection level, and unlock limited Link Cards only available through this collaboration.
We have several other projects in the works as well, with full details to be announced gradually via the game itself and official social media channels—please stay tuned!
Event Period: November 1, 2025 (Saturday) – November 14, 2025 (Friday)
Play the Game Here: https://s.g123.jp/nqzg6cm7
Official X: https://x.com/kumoko_laby_ja
Official Discord: https://discord.com/invite/5spUnekZQB
■Collaboration-exclusive illustrations now available as Link Cards!
Four exclusive collaboration-themed illustrations have been added to the game’s “Link Card” feature.
Featuring scenes such as Rudeus meeting his world with “White,” and powerful battle sequences between Roxie and the Demon Lords—these are special artworks you can only see in this event.
Additionally, one of either Roxie or Silfiette’s illustrations will be guaranteed upon progressing through the game’s collaboration events.
Don’t miss your chance to collect these rare, dream-collaboration artwork pieces featuring beloved characters.
・Illustration Showcase
■About the Anime “Mushoku Tensei: Jobless Reincarnation”
Based on a seminal work in the “isekai reincarnation novel” genre, Mushoku Tensei: Jobless Reincarnation by the author Rihinna no Sonno.
A 34-year-old NEET who never worked and avoided social interaction—spending his days lost in games and online—dies suddenly in a traffic accident… Only to awaken moments later as a newborn baby in a world of swords and magic!
This epic fantasy follows the journey of Rudeus, reborn as a boy, using memories and regrets from his past life to face new encounters and trials—with a determination to live seriously for the first time.
The first season aired in 2021; the second season began airing in July 2023—and the third season has now been officially confirmed for broadcast in 2026!
Official Anime Website: https://mushokutensei.jp/
■Game Basics
Title: But I’m a Spider, So What? The Dungeon’s Overlord
Genre: Dungeon-Crawling RPG
Price: Free (In-app purchases available)
■About “But I’m a Spider, So What?”
The protagonist, who was supposed to be just an ordinary high school girl, suddenly reincarnates into a spider monster in a fantasy world.
Even worse—she is born into a dungeon ruled by vicious monsters.
Armed only with human intelligence and unwavering positivity, she survives against overwhelming odds, defeating powerful enemy monsters using webs and traps.
The survival story of the lowest-class race but mentally strongest girl begins!
Official Website: https://kumo-anime.com/
■About G123 (G123)
A free gaming service that lets you enjoy carefully selected high-quality games on smartphones, tablets, and personal computers—no downloads or registration required.
Official Website: https://g123.jp/?lang=ja
■About CTW Co., Ltd.
A comprehensive internet platform service company listed on the NASDAQ, operating the game platform “G123 (G123).”
Company Name: CTW Co., Ltd.
Address: 1-9-10 Roppongi, Minato-ku, Tokyo 106-0032, Japan
Representative: Ryuichi Sasaki
Founded: August 2013
Capital: ¥100 million
Business: Platform Services
Website: https://ctw.inc/
©Rihinna no Sonno/MF Books/“Mushoku Tensei” Production Committee
©Baba Osamu / Hiryuuji/KADOKAWA/“But I’m a Spider, So What?” Production Committee
©CTW, INC. All rights reserved.
※All other company and product names mentioned are registered trademarks or trademarks of their respective owners.