- Home: https://usdx.eu/, https://sourceforge.net/projects/ultrastardx/
- Inspiration: SingStar
- State: mature
- Download: https://usdx.eu/downloads/
- Platform: Windows, Linux, macOS
- Keyword: music, remake, karaoke
- Code repository: https://github.com/UltraStar-Deluxe/USDX.git (@created 2015, @stars 472, @forks 124), https://github.com/UltraStar-Deluxe/legacy-sourceforge-svn-mirror.git @add (@archived, @created 2015, @stars 2, @forks 2), https://svn.code.sf.net/p/ultrastardx/svn (svn)
- Code language: Pascal
- Code license: GPL-2.0
- Code dependency: Lua, SDL2
- Developer: Alexander, Alexander Sulfrian, basisbit, Benedikt Krueger, blindy, Brian Chalega da Silva, brianch, brunzel, Canni, Dawid Dembowski, djazz, Eddie, ePirat, Felix Kaechele, GaryCXJk, Hermann Döppes, Holger Kuhn, jay binks, joachimdieterich.com, Jose Riha, K.-M. Schindler, Karl-Michael Schindler, lotan_rm, Markus, Markus Böhning, MezzoX, Mog, mota23, RattleSN4K3, s09bQ5, shazzzzam, Simon Ruderich, Stefan L., Tobias Gunkel, Valérianne, Whiteshark
Karaoke game.
- Build system: Lazarus project
- Build instruction: https://github.com/UltraStar-Deluxe/USDX/blob/master/README.md#5-build-and-run