Nearly two decades ago I did a than “current” vectrex resource collection.
The information I collected was found and correctly linked again, so have a look at the collected knowledge…
Vectrex Reources (old page)
There is an even older “version” of that page:
Even older resource page
(both pages contain mainly the same resources)
… and there still is all that stuff that I haven’t come around to sort yet…
It’s on the above page, but you can also look at it directly: