What's better than a heavily discounted video game you ask? How about one that's absolutely free! For the next 48 or so hours, you can download the cult classic Duke Nukem 3D absolutely free courtesy of GOG.com. Despite being released in 1996, it's still a pretty awesome game and one that nostalgic fans should download. At the low-low cost of zero dollars the only thing you're spending is bandwidth (and it's not even that much at 35MB). In short, this is a must download for fans of Duke Nukem and first-person shooters.

This isn't one for the kids as it features some pretty crude humour and has the 1996 version of pixelated blood, gore and all that good stuff.

Again, the free download will only be available until December 14 at 14:59 GMT.