Are we talking about what we consider the first widely successful RPG was or the first RPG ever? If it's the former, definitely Ultima. All my friends were fans of Ultima growing up and especially UO and when I think back to early successful RPGs, I can't help but think of Ultima.
(But serious answer, I went with Ultima for the poll. First thing that comes to mind when I think of "grandfather of RPGs". The other two games listed had more niche roles / offerings.) --- The sole purpose of this space is to make my post look longer.
I'm glad to see I'm not the only one who fondly remembers that game. It was one of the first games that made me want to rush home from school to play it.
I remember finding a chest and getting the message "treasure 09" or something (I don't actually have the treasure numbers memorized) and then being all excited, looking at the table to see what I got only to find it was "nothing of value" or junk. --- http://raptr.com/badge/arleas/uc.png http://www.speedtest.net/result/3201564081.png