Download KoeBattle
Everyone gets the same app. How long you can use it is set by the license file (KoeBattle-license.json) we send you by email.
1.3.1Released 2026-10-06
All folder and file names in this zip are in English. It contains the app and the manuals in English and Japanese.
License and Mac version
We email you the license file when you order (rental or one-time purchase). KoeBattle does not start without a license.
We send the Mac version (Apple silicon) separately when you order.
Getting started
Full steps are in README_FIRST.txt in the zip and in the manual ("Manual" on the control screen)
- Extract the zipRight-click the downloaded zip and choose "Extract All" (for example, to the Desktop). Running files from inside the zip does not work.
- Save the licenseSave the license file attached to our email (KoeBattle-license.json) to your Desktop or Downloads folder.
- StartDouble-click "Start_KoeBattle.bat" in the extracted KoeBattle folder. The license is loaded automatically the first time. If Windows shows "Windows protected your PC", click [More info] → [Run anyway]; if it says "The publisher could not be verified", click [Run] (only the first time).
- Microphone and screensOn the control screen, choose the microphone and press "Take baseline" under Setup, then choose the monitors for the big screens on the Outputs tab.
Renewing the license
No reinstall is needed. Just save the new license file and double-click
- Save the new KoeBattle-license.json we email you to the Desktop
- Double-click "Update_License.bat" in the KoeBattle folder
- When the new period is shown, you are done. If KoeBattle is running, reload the control screen to see the new period
If you open KoeBattle-license.json in Notepad and save it again, the signature no longer matches and it cannot be loaded. Save the attachment as it is.
Updating to a new version
Your license, settings and imported logos and videos are kept in %APPDATA%\KoeBattle, so they stay when you replace the app folder
- Stop KoeBattle ("Stop_KoeBattle.bat")
- Download the latest zip from this page and extract it
- Replace the old KoeBattle folder with the new one
- Start it with "Start_KoeBattle.bat". You do not need to load the license again (if you extract it over the old KoeBattle folder of version 1.2 or earlier, your previous settings are copied automatically; if you extract it somewhere else, copy the contents of the old KoeBattle\data to %APPDATA%\KoeBattle by hand)
Requirements
| Item | Details |
|---|---|
| OS | Windows 10 / 11 (64-bit). The Mac version is for Apple silicon (sent separately) |
| Browser | The control screen opens in your default browser. Full-screen windows for the big screens use Edge (Windows) or Google Chrome (Mac) |
| Microphone | A USB mic, the PC's built-in mic, or a line input from the mixer. For a simultaneous battle, one stereo feed (2 teams by left and right) or one USB mic per team |
| Network | No internet connection is needed. Output screens can also be opened from another PC on the LAN or in OBS |
| Other apps | Runs on the same PC as other DBT products such as DokoDoko and OtoMotion at the same time (each uses its own port; KoeBattle starts at 8860) |
Changes
1.3.1 2026-10-06
- If an unexpected error occurs while checking the license, the start window now shows the reason and what to do
- Manual and guidance fixes (when previous settings are copied automatically, how to extract on Mac)
1.3.0 2026-10-06
- You can now start with the downloaded zip and the license file we email you (we no longer deliver on USB drives)
- The first start loads a license saved on the Desktop or in Downloads automatically. Without a license, KoeBattle does not start
- Settings and the license are now kept in %APPDATA%\KoeBattle, so a new version only needs the folder replaced
- Runs side by side with other products such as DokoDoko and OtoMotion on the same PC without mixing them up (ports start at 8860)
Checking the file (SHA-256)
| File | SHA-256 |
|---|---|
| KoeBattle_Windows_1.3.1.zip | 9546f1e0acf34152bb6c85d0f299b1e0eaf13930921f309a1f9c038c34b8ba1d |
In PowerShell, type Get-FileHash <file name> to check that you get the same value.