That's right! At long last a beta of Brix Builder is available. This revolutionary program contains the first fully 3D perspective wireframing and hidden-line program available in z80 TI-BASIC. It is an advanced brick building program supporting multiple brick types, a full 3D 4-pane CAD style editor, and a dual-stream otpimized rendering engine. Weighing in at under 10K, it is Doors CS 5+ optimized and one of the most advanced z80 3D engines thus far.