Festival is a music player for local album collections.
Thorium Reader
Thorium Reader is an easy to use EPUB reading application.
Kasts
Kirigami-based podcast player.
G4music
A beautiful, fast, fluent, light weight music player..
Amberol
A small and simple sound and music player.
Flare
Flare is an open source, 2D action RPG licensed under the GPL3 license. Its game play can be likened to the games in the Diablo series.
Youplay
Search, download and play music from YouTube.
Klickety
Klickety is a strategy game by KDE, an adaption of the Clickomania game.
AudioTube
Client for YouTube Music
museeks
A simple, clean and cross-platform music player.