This is all I always asked for: a game that lets you take control of all superpowers of the world (USA, Brazil, Europe, Russia, China, etc.) and make them have a "free for all" style of war, with the right to access nuclear weapons. Thank you, devs, for making my dream come true. The gameplay is very simple, and within 10 minutes I could get the hang of it. I just think that the AI is very dumb and acts in the "kill, kill, kill" mode. There is no tactic at all. Ex: Im playing as a small country, such as North Korea. China, who is on my frontier, attacks Russia, who is much bigger and requires a lot of missiles to be taken down, while NK only requires one. And by that, you can just let they kill themselves, and when they notice, you have the tsar bomb and half of the world under your command. Apart from that, the game is totally worth the money, giving you a nice time-wasting game.
Update: this game doesnt have multiplayer, which is almost sin. Once you know how to play the game becomes stupid, as the AI doesnt have any tactics. Another example: if you are full of rockets and have a huge territory, the your enemies dont make you their priority, continuing to nuke each other. It would be smarter to join forces to kill you and then continue to fight. Another cool feature apart from the multiplayer, would be social choice. Ex: if you nuke too many important cities, like NY, São Paulo, Rio de Janeiro, London, etc, the people is more likely to hate you, starting to make protests and revolutions, which you will need to deal with without losing your control, by, for example, martial law.
Update 2: 1.3 is an awesome update. It introduces hardcore mode, which Ive been waiting for a long time, apart from the 2 new super weapons, that are amazing (the solar satellite isnt the best weapon to use, but its a lot of fun if you just want to mess around)and completely necessary, due to the lack of weapons on the original game (there were only 4). My suggestions are the same; multiplayer mode and political scenario, where the population of your country can try to take over your territory if you nuke a lot of big cities, such as NY, São Paulo, New Delhi and the list goes on. If you like political geography and history (like me :D) you must have this game and play it until your fingers bleed (thats not what I meant to say, but it works out fine). In hardcore mode my suggestion came true; if you are growing very fast and you have a lot of the world land mass over your control, your enemies WILL join forces to take you down. Success,first strike; you deserve it!