For a long time KDE has come with an assortment of games. Collectively, this suite of games is simply called “KDE Games“. With the advent of KDE 4, all of the KDE games were given face lifts and a standard set of features that make moving from game to game a seamless exercise.
The games are two dimensional and do not run inside of a separate layer like SDL. Instead they run inside a normal KDE window, utilizing the standard QT interface. Nevertheless, the rendering of of the graphics is amazingly impressive because of the use of SVG vector graphics. With SVG, the animations are smooth and the images are scalable. You can play in a small window or maximize it without losing any of its quality.