How many sales are needed to break even on first/second party HD games?

[Munkeh111]

Well the only data we know is Uncharted, which cost $20m, 2 years of full development with 90 people. Before that, they had 5 or so people on pre-production, and they had to create a new engine, and completely change the way they code games

They expect Uncharted 2 to cost them another $20m