Fans are making funny videos with Valve's free Source Filmmaker (SFM) tool, and we've collected five more of them, including 'Austin Powers' and more.

An anonymous NASA engineer sneaked an engraving of a 'Portal 2' character onto a panel now en route to the International Space Station. SPAAAACE.

Featured mashup videos of the week, including Duke Nukem reading '50 Shades Of Grey', Batman re-cut, and 'Pulp Fiction' and 'Back To The Future' with 'Team Fortress 2' characters.

Valve's Source Filmmaker is available for free, and fans have already created these fourteen silly videos with 'Team Fortress 2' characters.

Computer animation is popular, but it's also expensive and it's a huge pain in the ass.

You might have heard about the "Steam Box", a supposed game console that Valve is working on, but from all we've read, it's not actually a console.

Every time a TV show is cancelled or a movie featuring a comic book character gets a minor continuity point wrong, nerds freak out like they're being oppressed or something.

Ever since a purported employee of Valve wore a <a href="https://twitter.com/#!/Ekanaut/status/142476850931834880">Half-Life 3 T-shirt</a> to a game developer event, rumors have circulated that Valve would announce HL3 soon or release an Alternate Reality Game (ARG) campaign.

Earlier this month, Wheatley from Portal 2 was nominated for a Video Game Award from Spike in the "Character Of The Year" category, so Valve made <a href="http://www.rockpapershotgun.com/2011/12/12/valve-vga-vid-appears-to-offer-hl3-clues/">this video</a> voiced by Stephen Merchant, which some fans interpreted as a convoluted hint about Half-Life 3.

Our first question, on seeing this video, is what kind of pendejo names his kid "Vector.

Nyan you're thinking with portals.

If, somehow, you do not own "Portal" yet, now is the time to download it: <a href="http://store.steampowered.com/app/400/">it's available for gratis on Steam.</a> No, there's no catch.

It's that time of the week where we post a mixed bag of intriguing costumes we spotted recently.

Erin Michael Vondrak lives in Seattle and really wants to work for Valve.

The world's most popular <a href="http://store.steampowered.com/app/440/">war-themed hat simulator</a> is now permanently free to play.

Valve is releasing all three volumes of the Portal 2 soundtrack for free download at 320 kbps quality.

Arguably, there's an infinite number of things that could probably upset the fine residents of North Carolina.

Hey, remember that playable teaser Valve included as an extra on "Portal 2" that <a href="http://www.uproxx.com/gammasquad/2011/04/portal-2-has-a-super-8-level#page/1">we talked about a few days ago</a>.

"Super 8" is probably going to be like every other project J.

First 10 minutes above, the rest below.