This Raycaster Engine shows what can be done if you know how to work the hardware. Originally released in the early 1980ís, the Texas Instruments TI-99/4A was technically a 16-bit platform. One of the earliest to be released to consumers. While that is impressive on paper, real world execution was lacking in many ways with this computer. As with most of these classic platforms, leave it to independent homebrew devs to push hard. That is what the Raycaster Engine proves.