IFC Soft is a Web-based data visualization and analysis program using histograms, scatter plots, wind-rose plots, and self-organizing maps. It is specially designed to handle flow cytometry data, but will work with any numerical data set.
Kroket is interactive graph visualization software. It is similar to dot/graphviz, but focuses on the exploration of the graph. To this end, it features grouping, collapsing, and filtering of nodes.
Extensions providing additional features for Dolphin's right click menu in KDE.
A 2D/3D MMORPG client.