Quill - Powerful, API-driven rich text editor
oTuner - oTuner is a Free, Open Source Chromatic Tuner for Windows and Windows Mobile (or Pocket PC).
Really Big Sky - Really Big Sky is a 2D, Action-Arcade, Shoot ‘em-up, Space and Single-player video game created by Boss Baddie.
TuxGuitar - A Multitrack tablature editor and player.
Yousician - An interactive guitar-learning app.
Cold Space - Cold Space is a 3D, Space, Shoot ‘em-up and Single-player video game in which the player can take on the role of a protagonist who controls a different spaceship and starts his epic adventure against the alien force.