I figure you could "build a Steam" in a couple of years, with the right engineers hitting the main features. There's very little magic at the technology level, and you can make life simpler and forget about minor things like the hardware survey or the pretty graphs. I'm not saying this is trivial, but it's definitely doable.
This is a far different statement than "You can build something and compete with Steam in a couple of years". Most of the really hard problems are not technical. Success ain't gonna happen without a bunch of pain, sweat, and strategic stumbles on the part of the competition.
This is a far different statement than "You can build something and compete with Steam in a couple of years". Most of the really hard problems are not technical. Success ain't gonna happen without a bunch of pain, sweat, and strategic stumbles on the part of the competition.