Replying to the player's offer to attach a valve to his eyeball should HL3 be revealed, Newell stressed that the developer would only be showing previously announced games.
“We are not announcing anything at E3. Really,” he said. “We are not announcing Half-Life 3 or Portal 3 or Left 4 Dead 3. We are going to be showing stuff everyone already knows about ([Counterstrike: Global Offensive], Dota 2, [Steam Big Picture Mode UI])”.
While there was never any reason to believe that Valve would show HL3 - or any other unannounced title, for that matter – at E3, the developer's confirmation means yet another big hitter will not be making any big announcements this year, with Microsoft and Sony already having played down the chances of new hardware at the June conference.