Quassel is a modern, cross-platform, distributed IRC client, meaning that one or more clients can attach to and detach from the central core. It's much like the popular combination of screen and a text-based IRC client such as WeeChat or irssi, but graphical.

qdacco it's a graphical application providing a frontend to DACCO, a free Catalan-English dictionary. It's a small desktop application using Qt as widget library.

ARandR is a visual front end for XRandR, which provides full control over the relative positioning and rotation of monitors, as well as saving and loading to/from shell scripts.

Tic Tac Toe (naughts & crosses) is a simple two player game where the object is to place your shapes on the game board so that you get three in a row either horizontally, vertically, or across one of the diagonals while trying to block your opponent from doing the same.

Umbrello UML Modeller is a Unified Modelling Language diagram editor for KDE. It can create diagrams of software and other systems in the industry-standard UML format, and can also generate code from UML diagrams in a variety of programming languages.

Dianara is a pump.io client, a desktop application for GNU/linux that allows users to manage their Pump.io social networking accounts without the need to use a web browser.