I can talk about projects that I've worked on in the last couple years. I can't speak specifically about the development process for Half-Life: Alyx, it's too early for that. [There's] a different project that I worked on last summer and fall, which involved a considerable amount of motion capture. What's interesting to me in that is you won't see my face, but you'll see every gesture and emotional inflection, physical inflections, and then they'll map it, obviously. I mean, they put a million dots on my face. The knowledge that you've got that much nuance to work with, to say nothing of the fact that you have the actual physicality, is really neat.
I was working on that game for quite a while before I knew [what it was]. There was a rehearsal and some recordings, and after one of the recording sessions I was having a drink with the director. He told me what the game was, and nobody knows that this is coming.
I'll announce it on my Twitter feed when I'm allowed to—I'm trying to be circumspect even as I speak with you about it—but this is going to be such a mindblowing re-up from what people have come to know. It's going to really... it's going to make people have a complete re-understanding of what they thought they knew about the story in the game prior to it, and I don't even know if people are expecting it. It's going to be kind of a blast from the past.