Wizardry was the first first person RPG that I played...back in 1988. Followed closely by Bard's Tale. I used my programming skills to develop an application that could exactly copy the data disk for Wizardry (it had some basic for of copyright protection) so that when it came time to level up I could do it several times and pick the best roll of stats. But, it backfired...my character was so powerful after a few levels that I was just swatting the baddies without any worries...however the best fun was actually in mapping the area and finding the secrets and such. Of course, some people think the best part about the game was the box graphics.
With all that said, I wouldn't want to play it again...there really wasn't any story there that I can remember except that you are the good guy and the bad guy keeps sending his minions at you as you go deeper into the dungeon. But, it is a good first RPG for anyone that wants to go solo before joining the madness that is MMO gaming.