Desktop Mate is a free desktop mascot platform by Infinite Loop that has expanded through paid DLC characters, including Hatsune Miku, Sanrio Characters, Kizuna AI, MEIKO, KAITO, and Kasukabe Tsumugi. The most recent addition is the Kizuna AI ~ Kamatte AI-chan ver.~ DLC, released on August 20, 2026, and a sister calculator app launched on July 22, 2026.
Desktop Mate, Infinite Loop's free desktop mascot platform, has grown through a steady stream of paid character DLCs. The platform lets users place 3D characters on their desktop, where they sit on windows, interact with the mouse, and tell the time. The base app is free on Steam, and each DLC typically costs 2,200 yen.
In 2026, the DLC lineup expanded rapidly. Kasukabe Tsumugi launched on June 4, followed by Kizuna AI on June 30, her birthday, with the largest motion set of any DLC to date. MEIKO and KAITO arrived on July 9, completing the set of all six Piapro Characters. A Sanrio Characters DLC Set bundling six characters at a 20% discount went on sale June 26. The Hatsune Miku 'Magical Mirai 2026 Ver.' DLC released July 23, tied to the annual live event, with booths at all three venues.
The platform also expanded beyond the desktop mascot format. A sister app, Calculator - Desktop Mate Widgets, launched July 22 on PC, iOS, and Android, featuring characters reacting to button presses and a performance mode. The most recent DLC, Kizuna AI ~ Kamatte AI-chan ver.~, released August 20, adapting the song KAMACHO and supporting a multi-character feature that displays two Kizuna AIs side by side. The Mac open beta version, launched June 24, does not yet support the multi-character feature.
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Infinite Loop released the Kizuna AI ~ Kamatte AI-chan ver.~ DLC for Desktop Mate on Steam on August 20, 2026. The add-on is a new variation of the virtual talent with a pampered, attention-seeking look based on the song KAMACHO. It includes dedicated motions and original voices, and supports the multi-character feature for displaying two Kizuna AIs at once.
Infinite Loop announced on August 13 that a new DLC for its desktop mascot platform Desktop Mate, titled Kizuna AI ~ Kamatte Aichan ver.~, will release on Steam for PC on August 20. The DLC costs 2,200 yen including tax. The Steam store page is now live and wishlist registration is open. This DLC is a new variation of the existing Kizuna AI DLC, featuring a new outfit and a personality based on the 2026 song "KAMACHO," where Kizuna AI is eager for attention. All motions are produced by Kizuna AI official (Kizuna AI Inc.), and the DLC includes what the company describes as the largest number of motions in Desktop Mate history, comparable to the existing Kizuna AI DLC. The character will display emotions such as acting spoiled, sulking, and joy across scenes like petting, poking, and alarms. Using Desktop Mate's multi-character feature, users can display both the new DLC and the existing Kizuna AI DLC side by side, each with different motions and voices. The Mac open beta version, which launched in June 2026, does not currently support the multi-character feature.
Infinite Loop released the Desktop Mate Hatsune Miku 'Magical Mirai 2026 Ver.' DLC on Steam on July 23, 2026. The DLC adds a 3D model of Hatsune Miku wearing a special costume based on the event theme 'Lake Sonare,' which means 'to play' in Italian and references the first-ever Hamamatsu venue for Magical Mirai 2026. The costume design incorporates sunflowers, butterflies, and musical notes. The DLC includes new motions and effects such as shimmering water surfaces, splashes, and flower petals. The character can sit on the taskbar or windows, hide at the screen edge, and react to clicks with motions and voices. An alarm function triggers a special performance where Miku appears holding a bunch of sunflowers. The base Desktop Mate app is free on Steam; the DLC costs 2,200 yen and is available as a limited-time offer until August 31, 2027, with possible extensions or re-releases. Infinite Loop will also exhibit Desktop Mate booths at all three Magical Mirai 2026 venues in Hamamatsu, Osaka, and Tokyo, offering demos and selling DLC download cards and acrylic stands.
Infinite Loop announced on July 16 that its desktop mascot platform Desktop Mate will get a sister app, Calculator - Desktop Mate Widgets, releasing on July 22. The app is a free-to-use digital calculator available on PC (Steam, Microsoft Store, Mac App Store), iOS, and Android. Characters appear in the background and react to button presses with spoken numbers and poses; pressing '=' sometimes triggers a struggle animation. A performance mode turns the calculator keys into piano keys, with the character singing. The base app includes Infinite Loop's mascot Aierutan voiced by Milia. Additional character DLCs cost 440 yen each. The first DLC, Hatsune Miku, launches simultaneously on July 22 with newly recorded voice lines and four theme designs. Special reactions occur for specific results like '39'. Infinite Loop also plans future widget apps beyond the calculator. Separately, a Desktop Mate DLC for Hatsune Miku Magical Mirai 2026 Ver. will release on Steam on July 23 for 2,200 yen, and Desktop Mate will have booths at all three Magical Mirai 2026 venues.
Infinite Loop announced on July 2 that DLC for the virtual singers MEIKO and KAITO will launch simultaneously for the desktop mascot platform Desktop Mate on July 9. Each DLC costs 2,200 yen and will be available on Steam. The store pages are now open for wishlisting. The DLC includes newly produced 3D models supervised by Crypton Future Media, along with original motions and voices exclusive to Desktop Mate. MEIKO's motions include striking a dignified pose, making singing gestures, checking on the user and fixing her hair, relaxing with a drink, and waving when pinched. KAITO's motions include singing gestures, striking poses, eating ice cream, and leaving with a gentlemanly bow. With the addition of MEIKO and KAITO, all six Piapro Characters are now available in Desktop Mate. The base Desktop Mate software is free. Previous DLC has included Hatsune Miku, Sanrio Characters, and Kizuna AI.
Infinite Loop Co., Ltd. released the Desktop Mate Kizuna AI DLC on June 30, 2026, which is also Kizuna AI's birthday. The paid DLC, priced at 2,200 yen, is available on Steam for Windows and macOS. It includes the largest number of motions of any Desktop Mate DLC to date, with all animations produced by Kizuna AI Inc. The DLC reproduces Kizuna AI's signature greeting "Hai Doumo!" and features different reactions for standing and sitting poses, along with emotional expressions for interactions like petting, poking, and the alarm function. The alarm notifies the user with a pop-up and a spoken time announcement in a casual format rather than a strict clock reading. The base Desktop Mate app is free, and the DLC requires it. The macOS version entered open beta on June 24, 2026, and supports Apple Silicon chips.
Infinite Loop began sales of the Desktop Mate Sanrio Characters DLC Set on June 26, bundling six previously released character DLCs for the desktop mascot platform. The set includes Hello Kitty, Pompompurin, Cinnamoroll, Pochacco, My Melody, and Kuromi, each with officially supervised voices and personality-specific animations. Pompompurin dozes off while sitting, Pochacco hops around, and Kuromi occasionally takes selfies. The bundle is priced at 10,560 yen including tax, a 20% discount from the regular combined price of 13,200 yen. It is the first six-DLC bundle for Desktop Mate. A multi-character feature allowing Sanrio characters to interact on screen is scheduled for a full release soon. A promotional video showing the characters moving on a desktop has been published on YouTube. The set is available on Steam for Windows 10 and 11, with macOS support added for Tahoe 26 and later via open beta. The sale period runs until March 4, 2027.
Infinite Loop announced on June 23 that it will release a Kizuna AI DLC for the PC desktop mascot platform Desktop Mate on June 30. The DLC costs 2,200 yen and is available on Steam. It includes the largest number of motions of any Desktop Mate DLC to date. All animations were produced by Kizuna AI Co., Ltd., faithfully reproducing the virtual talent's gestures and expressions. The DLC features her signature greeting "Hai doumo!" along with different reactions for standing and sitting, and emotional responses such as "happy," "flustered," and "proud" triggered by petting, poking, or alarm interactions. The release date coincides with Kizuna AI's birthday. Desktop Mate is a platform that lets users place 3D characters on their desktop, where they can sit on windows, interact with mouse movements, and tell the time. Previous DLC characters include Hatsune Miku, Zundamon, and Kotonoha Akane. The Kizuna AI DLC supports Windows 10 and 11, requires 8GB of RAM, and is available in Japanese and English.
Infinite Loop released a DLC for the synthetic voice character Kasukabe Tsumugi on the desktop mascot platform Desktop Mate on June 4, 2026. The DLC includes motions and character voices for the hyper Saitama gal character, available on Steam for 2,200 yen.
Infinite Loop announced on May 28 that a new DLC for its desktop mascot platform Desktop Mate will launch June 4 on Steam. The Kasukabe Tsumugi DLC costs 2,200 yen and adds the hyper Saitama gal character to the software. Kasukabe Tsumugi is a synthetic voice character created by virtual Saitama resident Kasukabe Tsukushi. She debuted in 2021 as a speech synthesis character and has since appeared in videos and game streams. The DLC includes character-specific gestures: fixing bangs, taking selfies, showing a gal peace sign when touched, browsing video sites on a smartphone while lying down, and hiding poses that differ between left and right. An alarm function shows her leaning forward energetically. The DLC supports Japanese and English languages. Wishlist registration opened on Steam on the announcement day. Desktop Mate is a platform where 3D characters sit on windows, jump between windows, and interact with the mouse cursor. Infinite Loop describes it as designed not to interfere with work or tasks.