VICE looks into it:

I actually didn’t realize the military had so much to do with the birth and early innovation of video games.

6:25 – DOOM was so legendary.

Bravemind looks interesting, and definitely seems like a good idea to have something like that.  Even though the graphics aren’t very modern looking, it’s amazing how after playing something for a few minutes your brain just forgets it doesn’t look ultra real, and deals with it.