Isn't this adventure right here, under our own noses?
Aren't we living it right now?
Back in the 1990s, indie game design in real time 3D was out of our reach. Now we have some of the same technology used in commercial games right now. I see mind blowing 3D realtime games here and made with Torque and other engines. This is marking a big change in how games are being made now, and how they will be made in the future.
I'm convinced that the indie game production process is going to become easier and easier as more tools become accessible, and eventually come to a point where the game designer focuses more on content than on technology. I think there's a golden age afoot and we might not be able to see ourseles standing right there in its early stages. At some point, being a game designer is going to be more like being an author working alone on a book, and the days of huge production teams will dwindle. At least that is how it seems to me.