Knights Of Xentar Code Wheel
To this day, the most complete version of the wheel is available as a printable PDF on the Internet Archive. It requires scissors, a brass fastener (brad), and about 20 minutes of arts-and-crafts time.
If you want, I can:
There was a specific ritual to using the thing. You’d be sitting there, the room lit only by the glow of a CRT monitor, physically spinning this cardboard disc like you were cracking a safe. knights of xentar code wheel