Oh, bless your little souls!
I'm glad
Perfect Dark for N64 has already been mentioned several times.
Other than that, I don't really play video games at all. I used to play WWII board games with my dad, and
Axis and Allies is still probably my overall favorite. I continued that WWII turn-based hobby on the computer, and
Panzer General for Windows 95 is another one of my all-time favorites--I still have it on this computer.