Games Windows
UltraStar WorldParty
Sing with up to six players in UltraStar WorldParty, a free, open-source karaoke game for Windows that scores microphone performances by pitch and rhythm.
- Operating system
- Windows; Softonic lists Windows 11
- Architecture
- Not specified in the inspected publisher release material
- Download package
- EXE installer
Official 21.02 Windows release. Current Windows build support has not been independently verified. Screenshot comes from the publisher’s Linux store gallery.
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What is UltraStar WorldParty?
UltraStar WorldParty turns a microphone sing-along into a scored karaoke game. Up to six players can sing along with music, with points based on vocal pitch and singing rhythm. It is a fork of UltraStar Deluxe 1.1, suited to group singing rather than simply displaying lyrics.
The project adds song-selection options, avatars, themes and skins, along with improved mouse and camera support. The download here is the publisher’s Windows EXE installer for version 21.02; its release notes describe fixes to 20.12 and a new background song.
Microphones are needed for voice-based scoring. The publisher confirms a Windows version but does not specify current Windows build requirements or the CPU architecture in the inspected release material. Softonic lists Windows 11; that listing is not a compatibility test, and this entry does not claim the game was installed or run. The screenshot shows the publisher-supplied WorldParty menu from its Linux store gallery, not a verified Windows session.
What it offers
- Microphone-based karaoke scoring using vocal pitch and singing rhythm.
- Support for up to six singing players.
- Song-selection options, player avatars, themes and skins.
- Mouse and camera support described by the project.
Good to know
- Microphones are required for voice-based scoring.
- Current Windows build support and installer CPU architecture are not specified in the inspected publisher release material; Windows 11 is listed by Softonic, not verified here.
Product images

Sources
References used for this listing. Retrieval dates do not indicate hands-on testing.