Remember the MSDOS days when you were running blocky 3D games at max 320x200 resolution (Duke 3D, Wolfenstein, etc.)? Those were the days!
What was your first array into modern 3D gaming, by which a mouse was necessary for control, and running at at least 640x400 resolution? For me, it was Evolva. What an experience that was playing a modern 3D demo back then that ran in Windows!