Hypothetical genocide has never been so fun or so evil.
It's got a certain degree of beauty to it, whether its the wonderfully crafted visual style, like a neon sign of terror, or just the sheer giddiness you get when you destroy a city and '6.5 million dead' pops up on screen. It's such a simple strategy game, but the essence is so deep, almost like modern warfare itself, with its laser targeting and almost AI-controlled bombs, it still requires a degree of skill to know just what the hell you are doing. Playing a power-hungry genocider has never been this fun.
There are setbacks, however. The fact that this is multiplayer focused means that single player is just not as fun, almost boring. It also seems a little confusing at first, I struggled with the general concept and took a while to understand what was going on.
Overall, DEFCON is a great game to run in the background, it's fun, it's great to look at, and it turns you into a temporary mass murderer. What's not to like?