Requirements: (1) Recent gcc/g++ (2.95.x, 3.x). (2) X11+GLX. (3) ImageMagick >6.4 (4) OPTIONAL: OpenAL for sound. (skyrocket) (5) OPTIONAL: pthreads for smoother image loading. (matrixview, drempels) (6) OPTIONAL: GLEW for vertical refresh (all) and shaders (hyperspace). (7) OPTIONAL: OpenGL Character Renderer (like QuesoGLC) for text rendering (pixelcity).