October 27, 2026, Tokyo, JAPAN – COVER Corporation (Minato-ku, Tokyo; CEO: Tanigo Motoaki) is pleased to announce the upcoming release of the Mori Calliope DLC for Desktop Mate, developed by infiniteloop Co., Ltd. The first hololive collaboration on Desktop Mate featuring VTuber Mori Calliope from hololive production will officially launch on October 29, 2026 at 12:00 JST for Windows and Mac, complete with newly recorded voice lines in Japanese and English by Mori Calliope herself.

The Steam store page went live on October 27, 2026 at 12:00 JST, and the DLC is available to wishlist now.

 

DLC Features Overview

■ Special Interactions with Mori Calliope
The Mori Calliope Desktop Mate is interactable by patting, poking, or picking motions, meant to discover a range of unique reactions.

The DLC features a variety of animations and interactive features that showcase Mori Calliope’s distinctive personality. Patting her head triggers a special animation featuring the “Dead Beats” and Death-sensei, while other interactions reveal a range of unique reactions. The DLC also includes dynamic scythe animations, signature poses, and a special animation that plays when the desktop alarm goes off.

■ Newly Recorded Voice Lines in Japanese and English
All voice lines included in the DLC are newly recorded by Mori Calliope, with both Japanese and English available:

・ Wide Range of Scenes: Voice lines cover a variety of interactions, including idling, patting, poking, entering and exiting, and alarms.
・ Signature Personality: The dialogue features Mori’s signature blend of languages and personality, offering fans a chance to enjoy both her cool reaper persona and her adorable side.
・ Users can switch between the two languages in the settings.

■ Multi-Character Mode
Desktop Mate’s Multi-Character Mode allows users to display two characters on their desktop simultaneously. Mori Calliope can be paired alongside the default character or any other owned DLC character with individually adjustable sizing. Multi-Character Mode is currently exclusive to the Windows version.

 

Product Information

・ Product Name: Desktop Mate Mori Calliope DLC
・ Release Date: October 29, 2026 (Thu.), 12:00 JST
・ Price: ¥2,200 (tax included)
・ Supported Languages: Japanese, English
・ Supported OS: Windows 10/11 (64-bit), macOS Tahoe 26 or later
・ Platform: Steam

Steam Store Pages
・ Desktop Mate: https://store.steampowered.com/app/3301060/Desktop_Mate
・ Desktop Mate Mori Calliope DLC: https://store.steampowered.com/app/5345390

Official Website: https://infiniteloop.co.jp/desktopmate
Official X Account: https://x.com/desktop_mate

 

System Requirements

Windows
・ Memory: 8 GB RAM or more
・ Processor: Intel Core i5-8250U / AMD Ryzen 3 3300U or better
・ Graphics: Intel UHD Graphics 730 / Radeon VEGA 8 or better
・ Storage: 500 MB available space
* A GPU or a CPU with integrated graphics is required.

Mac (Open Beta)
・ Supported OS: macOS Tahoe 26 or later
・ Memory: 8 GB RAM or more
・ Processor: Apple A18 Pro chip / Apple M1 chip or better
・ Storage: 500 MB available space
* Apple silicon is required. Intel processors are not supported.

 

About infiniteloop Co., Ltd.

infiniteloop is a system development company with offices in Sapporo, Hokkaido, and Sendai, Miyagi. Founded in Sapporo in 2007, the company develops games, smartphone apps, VR/AR/MR experiences, web systems, and more, working on projects nationwide with a focus on Tokyo.

Under its motto, “Running alone at the very back of the cutting edge,” infiniteloop harnesses the power of ideas to create innovative technology. The company also supports the development of the next generation of engineers through specialized skills training and educational programs.

Company Information
・ Company Name: infiniteloop Co., Ltd.
・ Address: Sapporo Factory Ichijo-kan, 4-1-1 Kita 1-jo Higashi, Chuo-ku, Sapporo, Hokkaido, Japan
・ Representative: Masahiro Ono, President and CEO
・ Official Website: https://infiniteloop.co.jp