Steam announcementView the game on SifterSeptember 16, 2026

🎉Zundamon, Koharu Rikka, Natsuki Karin & Hanakuma Chifuyu Out Now🎉

Thank you for playing Calculator - Desktop Mate Widgets.

Today, September 16, 2026 (Wed), the Zundamon, Koharu Rikka, Natsuki Karin, and Hanakuma Chifuyu DLCs are now available!

Each character features newly recorded voice lines. Every time you press a button, the character speaks the number and strikes a pose.

◯Character highlights

■Zundamon

A zunda fairy known for ending sentences with "noda." Includes 4 themed designs, such as a traditional Japanese layout where zunda mochi become the buttons.

Watch on YouTube ↗

■Koharu Rikka

Includes 4 themed designs, such as a soft pink layout with drifting cherry blossoms.

Watch on YouTube ↗

■Natsuki Karin

Includes 4 themed designs, such as an elegant soft purple palette.

Watch on YouTube ↗

■Hanakuma Chifuyu

Includes 4 themed designs, such as a pale blue layout with drifting snowflakes.

Watch on YouTube ↗

◯Performance Mode & SP Answer Actions

Switch to Performance Mode and the character will sing along to the calculator keys. Certain calculation results can also trigger special character reactions. See how many hidden reactions you can discover!

◯Save More with the Bundle

Bundles are available that let you get each Desktop Mate character DLC together with its Calculator counterpart. Even if you already own one of them, purchasing through the bundle page gets you a special price on the other.

Download now:

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More DLCs are on the way. Thank you for your continued support of Calculator - Desktop Mate Widgets!

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Posted by the game’s developer or publisher to its Steam community hub and published by Valve through Steam’s public news API. Sifter reproduces it unedited and writes none of it.