John Carmack

The cost of adding a feature isn't just the time it takes to code it. The cost also includes the addition of an obstacle to future expansion. The trick is to pick the features that don't fight each other.

The core of what I do is solve problems, whether that's in graphic engine flow or rockets. I like working on things that are going to have an impact one way or the other.

One of the reasons microcomputers progressed so fast is people are willing to accept crashes. It's faster to build something and try it, even if it means you'll have to rebuild later... If you spent too much time building and massaging one vehicle, you don't learn anything.

The great games are the space sims and driving sims and these experiences where you're basically sitting at a table with nothing happening in front of you. A lot of interesting things are evolving there. There are great games that can be made.

I consider myself a remarkably unsentimental person. I don't look back on the good old days.

Developing games for the PC and consoles is all about everything and the kitchen sink. In many ways, you don't have design decisions to make. You do it all. So I enjoy going back to making decisions about what's important as I'm working on a game.

When people heard id Software's being acquired, everybody just assumed it would be Activision or EA. Why would we even consider going with a publisher that wasn't of that same size?

Oculus version three or five or whatever it ends up being is something that can be used unplugged - we'd have our own Android stuff and all that - but you could plug it into the PC and use that.

I don't think anyone is going to say great things about being a native developer on Android.

It was great for me to go through all of my crazy Ferraris in my twenties. I think it was an inoculation against any kind of a midlife crisis.

It really feels like VR has the possibility to be something really huge.

There are some things that are exciting for distributors. I love Apple's AppStore and the things people can do with digital distribution.