Not as rivals to those games, perhaps. But Minecraft and Angry Birds show that it's easier than ever for a single person/small team to create and sell an extremely successful game.
More so, they prove (again) that the technology arms race in today's video games is utterly retarded. It's also the reason many indie games tend to be so good and refreshing - they can't make a hitech ultra-HD game, so they focus on what really matters: gameplay and design.
http://m.techcrunch.com/2011/02/28/creator-of-angry-birds-ph...
I love good code & elegant design, but it doesen't beat having a successful product out there.
Remember, shipping is a feature ;)
Remember, usability is a feature. >:3