Plus when Wizardry 1 came out there was no 3d graphic at all. It came out
on the IBM with no color graphic and useing the IBM speaker than it need 128 k of memory to run.

Wizards and Warriors was designed by the creator of Wizardry's 5-7, D.W. Bradley. While W&W was a fun game for a while, it didn't make the transition to a 3d environment as well as Wizardry 8 did.

W&W was buggy as hell, too. I couldn't take three steps without the game crashing, so it got uninstalled.
No problems with Wiz8.