Geeks can be pretty hard to shop for, we know. What one geek loves, the next has no interest in. This year, we're trying to cover as many eclectic tastes as we can, including the 3D printers out there, the DIYers, space nuts, Internet tricksters and more. Here you'll find all the DVICE Gift Guides from 2012.

Elon Musk has been talking about creating a colony on Mars for a while now, and he wants 80,000 colonists moving to Mars per year.

What you see above is a human body. A naked human body, in fact. Japanese photographer Shinichi Maruyama, who has taken some curiously gorgeous shots of nothing but water, didn't use fancy tricks to get the effect you see here, but rather created a composite out of thousands of images to convey a form in motion.

Steam has fired up another of its infamous sales, the simply named "Steam Autumn Sale," which lasts from today through November 27. For PC players, it's a fairly familiar shot to the wallet, though not an unwelcome one — Steam discounts games deeply and changes what's on offer every day. Bear in mind, that means the prices you see here could change, too. That's why we're putting two games on watch — we think they're great, but they're also new and may not go on sale.