Sega VR revived: emulating an unreleased Genesis/Mega Drive accessory

Until now, most of what we know about Sega VR comes from trade show appearances, marketing materials, patent documents, and firsthand accounts. This has meant that many of unit's the technical details have remained speculative or completely unknown. When looking back and studying hardware that pushed so many of the technical boundaries of its time, however, those details are important! Whether Sega VR achieved its many ambitious goals or not, it remains a fascinating and notable entry in VR history.

In order to study hardware of this nature, if you don't have access to the hardware or its implementation details, access to the software is often the next best thing. The software will tell you exactly what it expects of the hardware, and given those expectations, you might find that you have enough information to emulate the hardware. At the very least, you'll have enough information to emulate a version of the hardware that conforms to the software's expectations, and that's exactly where we're headed!

Rebuilding the announced, but never shipped Sega VR from the early '90s. What an effort.