These were very good for playing the war games which obsessed us all.
It was the basis for the movie War Games in which the military's computer finally figures out it can't win in a nuclear launch scenario and says of such a war, Strange game.
While the games aren't as potentially offensive as many violent war games are, they do involve simulated fighting.
Addicting Games is another popular free online war games site, which also features numerous other games from strategy to puzzles.
If you are looking for intense 3-D games with great graphics, this is the free online war games site for you.