Ahh Amiga, it's because of its first "3D" game, the obscure Mindwalker (which you can glipse footages in old Amiga ads on youtube), that I knew little gaming me would grow up not only as a programmer, but a crazy 3d programmer.
And you know a game is old when it's creator has been dead for years, RIP Bill Williams (however I ran around for years in that damn game, believing the map was endless, only to find out 10 years later that what I thought was decoration was actually the mean to reach the upper levels.. aww..).