This is a good interview
about the new games. This is what sold me:
Moffat: They made the Tardis bigger on the inside than the outside. I don't mean by cutting. You control the little fella, he walks in... and it's bigger on the inside. That's it. That's the central magic of Doctor Who, done in only a way a computer could do. We could fake that up on television, but to be able to be physically do it and discover it really is bigger on the inside... that's the central magic of Doctor Who made flesh for the first time ever.