According to a "trusted source" reportedly "close to Valve", Half-Life 3 is in development and will take the form of an open-world game with RPG elements.
Earlier today, the International Business Times picked up on a Journaldugamer report that hinted at a "very chaotic" development period for the much-anticipated (yet completely unannounced) sequel, making note of "total revisions".
According to the report, the game began as a "pure shooter", before the team started incorporating puzzle-solving and exploration elements, and now it would seem that the form Half-Life 3 is taking, should this source be believed, is that of an expansive game featuring "open-world, quests and NPCs".
No release date is mentioned, although the source reportedly suggested a post-2013 release, possibly to coincide with next-gen console and, as the French site theorises, the possibility of an appearance for Valve's much-rumoured Steambox.
This is, of course, yet another Half-Life 3 rumour, which means that large pinches of salt, checking your immediate surroundings for trolls, and crying after hours of rumour-fuelled conjecture are likely to be the order of the day.