Defcon was one of RPS' favourite games of last year, if only because it gave me another opportunity to stomp Walker, but this time with Nuclear Warheads for a bit of variety. Which makes us happy that Introversion have just announced a free-play weekend to tie in with the Penny Arcade Expo. From 6pm GMT Friday August 24th 18:00 GMT until Monday August 27th 6am, you can lob strategic nuclear weapons around as if they're going out of fashion. Which, hopefully, they are.
While clearly a good thing, it's worth noting that the basic demo which is constantly available does allow you to play online in a multiplayer capacity with the limitations of there being a maximum of two players per game (Which is accurate for world-superpower simulator, but a little limited compared to the full game's six) and only being able to play on Standard mode (And not any of the natty variants, like the everyone-dies-REALLY-QUICKLY Speed Defcon). You can also join any Standard games online, as long as there isn't a demo player already in there.
Which strikes me as a lot of rules to remember, especially for someone hungering to lob nuclear devices towards the horizon, so it may be more sensible to wait until the 24th and have all-gloves-off play of all-gloves-off nuclear war.
There is actually a mac version available to play for the event too, but we're not linking to it due to a moment of childishly petty format bigotry.