Linux has a huge library of free games many of which are released under an open source license. The vast majority of these games are athestically pleasing. Popular games often have full motion video, vector graphics, 3D graphics, realistic 3D rendering, animation, texturing, a physics engine, and much more. Early computer games did not have these graphic techniques. The earliest video games were text games or text-based games that used text characters rather than vector or bitmapped graphics.
Text-based games are often forgotted and neglected in the Linux press. However, there are some real ASCII gems out there waiting to be explored which are immensely addictive and great fun to play.