I once made a list of Wizardry games. I'm not sure if there was one I missed, but here they all are:Wizardry 1-3 were available for various PCs as well as NES, SNES, and the Turbo CD-ROM system (an add-on to the Turbografx).
Also they were recently put on PCs and the PS2 in a collection called Saga of Llylgamyn (which is Japanese-only).
Wizardry 4 was available for various PCs and Turbo CD.
Wizardry 5 was available for various PCs, SNES, and Turbo CD.
(as an aside, I would LOVE to play the Turbo CD versions of these games, to see if they have an English option like the NES/SNES ones do and to see how they stack up to said versions).
Wizardry 6 was for PC and SNES (the latter is only in Japan).
Wizardry 7 was for PC and Playstation (the latter only in Japan).
Wizardry 8 was for PC.
There were also the following spin-offs, most of which were released only in Japan:
Nemesis: The Wizardry Adventure is, of course, a spin-off game which I hear is some sort of Myst clone for PC. I'd love to play this.
Wizardry Gaiden 1-4, the first three being for Game Boy and the last one being for Super Nintendo.
Wizardry: Dimguil is a name I saw on Gamefaqs and I'm not entirely sure it's related to OUR Wizardry. It's for PS2, in Japan.
There were four "Wizardry Empire" games, two for GBA, two for PS2, all in Japan.
There was also Wizardry: New Age of Llylgamyn for PS2.
Now I saw two oddballs listed: Busin - Wizardry Alternative and
Busin 0 - Wizardry Alternative Neo. I'm not sure these are directly related to OUR Wizardry. Both are for PS2.
One of my friends informed me about a game called Wizardry: Tales of the Forsaken Land for the PS2, which is out in English but hard to find.
And finally, there's an upcoming GBA game called Wizardry Summoner (sometimes also called "Wizardry: The Summoning" I don't know which is the correct title). I don't know if there will be a US release or not.