Nothing says “indie” quite like breaking down the walls of copyright and adding a bunch of characters from games you had no hand in making. And wouldn’t you know it, Gaijin Games is doing just that with their cardiovascular improvement simulator, BIT.TRIP Presents: Runner2: Future Legend of Rhythm Alien or "Runner 2" for those who need to work on their lung capacity.

Those who drop $3 for the “Good Friends Character Pack” will have access to Psychonauts’ Raz, Cave Story’s Quote, Machinarium’s Josef, Super Meat Boy’s Dr. Fetus, Portal 2’s Atlas (who’s Steam exclusive), Bit.Trip’s invisible Commander Video, and Spelunky's, er, Spelunky Guy.

We’re a little bummed that the DLC doesn’t offer new levels of some kind, but it’s hard to complain about anything when it’s a paltry $3, which, as developer Dant Rambo notes, is less than "a bag of hot dog chips." Still, here’s hoping we get some new levels to break in this new cast somewhere in the near future. In the meantime, why don't you watch these character introductions narrated by none other than Charles Martinet, aka, the voice of Mario. Yes, that Mario.

Just as promised, Steam Trading Cards is now live. The virtual cards can be earned by playing participating games on Steam, trading with other users, or buying on the Steam Marketplace. Complete a set to create a badge, earn rewards and XP, and level up. The user with the highest Steam level at the end of the year gets to high five Gabe Newell while announcing Half-Life 3. In space.

In other true facts, I'm already hearing from users playing the Steam marketplace to profit off the cards' initial popularity. One user I spoke to has been buying low and selling high to pad his Steam wallet, even creating scarcity by buying up low-value cards in quantity. I'll keep an eye on marketplace prices as more users start trading the collectibles.

I was hoping to find a good deal on a 1952 Mickey Mantle card, but unfortunately, baseball isn't a participating game. You can see which of the games you own are participating here.

Brad Muir may be busy running Double Fine's latest Kickstarter, Massive Chalice, but he's still got time for his greatest vice: Dota 2. "I'm extremely addicted," he says. "I'm playing all of the Dota 2 I can handle!"

Name: Brad Muir
Occupation: Project Lead at Double Fine Productions on Massive Chalice
Location: San Francisco, CA
Twitter: MrMooEar

Who are you?

I'm Brad Muir! I'm a Project Lead at Double Fine Productions. I've been here for almost 10 years, working on games like Psychonauts, Brütal Legend, Iron Brigade, and now Massive Chalice.
"It boots and loads games so quickly it's ridiculous. I feel like I'm in the future."
What's in your PC?

I used to be really into building my own PC's but this time I around I had a good friend help me out. I just haven't been keeping up with hardware trends. But the rig that he spec'd out for me is about a year old and it's still a beast! Core i5 3570k, 8GB DDR3 RAM, GTX 580, 256GB SSD. It was such a major upgrade to my old rig!

What's the most interesting part of your setup?

I think it's a pretty normal setup. My PC is at a desk in the guest bedroom with a desk chair. There isn't really anything fancy about it. But I will say that upgrading to a PC with an SSD has been revelatory! I know that it's not uncommon nowadays, but the speed just hasn't worn off on me. It boots and loads games so quickly it's ridiculous. I feel like I'm in the future.

What’s on your desk?

It's so messy it's embarrassing! I keep a lot of stuff by my PC. There are a ton of books, Magic cards, and official-looking pieces of mail laying around that I should be dealing with. But mostly I'm just ignoring these things and playing Dota.
"Games were a great escape for me and let me really feel in control of what was happening in the world."
What are you playing right now?

Oh man I'm playing all of the Dota 2 I can handle! My younger brother roped me into the game and I'm extremely addicted right now. I'm definitely looking forward to The International 3 in Seattle in August! I've also been playing some Crusader Kings 2, XCOM: Enemy Unknown, and X-COM: UFO Defense (old school!) for MASSIVE CHALICE research! It's pretty awesome when these games are considered "research" for your job!

Why do you game?

When I was a kid I think it was all about having a safe space. Games were a great escape for me and let me really feel in control of what was happening in the world. Nowadays I think it's a lot different—games are a great way to socialize and keep in touch with my brother. And I think they're a great, interesting way to apply stress your brain in a positive way. I'm so excited that games are offering all sorts of diverse experiences these days. I'm loving the indie community—it's just great that you can have games like Kerbal Space Program and Cart Life in the Steam store next to Call of Duty. Amazing!

How I Game is a weekly spotlight of developers, pro gamers, and community members. Know someone who you’d like to see featured? Drop a comment below.

Amnesia Fortnight is how Double Fine turns creative people into games—everyone on staff is hit on the head with a brick or some other amnesia-inducing device and spends two weeks prototyping new ideas. It's how Costume Quest and Stacking were greenlit, and last year Double Fine introduced us to the process by letting us vote on concepts in its first Humble Bundle collaboration. Those prototypes, and a few more, are now available again through the current Humble Double Fine Bundle.

Along with Psychonauts, Costume Quest, Stacking, and Brütal Legend, beating the average price (currently $8.15) will now also get you Windows-only concept games Autonomous, Black Lake, Hack n’ Slash, Spacebase DF-9, The White Birch, Happy Song, Brazen, and the Costume Quest prototype.

Also added are the prototypes' soundtracks, as well as 2 Player Productions' Amnesia Fortnight 2012 Documentary, which was originally released as daily video updates during the two-week prototyping crunch. Check out the trailer below: