Game · Action & shooters

UltraStar Deluxe

Karaoke for your PC.

Completely free
Linux
Open source

At a glance

All of UltraStar Deluxe is free: no feature is locked behind a paid plan, and its code is open.

Its licence (GPL-2.0) is a copyleft open source licence: you may use, study, modify and redistribute it, including commercially; modified versions must keep the same licence.

Strengths

Open source code
Commercial use allowed

About

UltraStar Deluxe is a free open source karaoke game for your PC. It records the voice of the players and gives points if they hit the notes. Unlike the commercial alternatives, UltraStar Deluxe allows users to add their own songs. For the Flatpak release the songs need to be placed into ~/.var/app/eu.usdx.UltraStarDeluxe/.ultrastardx/songs/.

Description from Flathub — AppStream (Flathub)

Sources and checks

Facts collected from Flathub (credit card, source code, publisher, licence, free status, platforms, commercial use, version) — 9 November 2026
Last technical check: 7 November 2026
Description from Flathub — AppStream (Flathub)

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