Valve haven't exactly been at the forefront of game development in these past years, which makes every bit of info precious and Valve News Network now published a batch of 29 screenshots of what they claim is a Left 4 Dead 3 level.
I know, there was Artifact, but let's not pretend that Valve's card trading game has anything to do in the company of illustrious titles like Half-Life or Left 4 Dead.
Anyway, according to VNN's claims, the images you see are part of the cancelled Left 4 Dead 3, showing Middle Eastern settings that seem to match the themes in the also-recently-leaked character art.
The actual story of getting these screenshots is a lengthy and complicated one, but in short - the map uses some assets from Counter-Strike: Global Offensive's redesign of the classic Dust map, and the basic geometry was accidentally included in the Dust II update.
It eventually became clear that this is no multiplayer level, as it was designed for linear progression, with different visibility at different stages of the level, which VNN claims is pretty much proof of this being a Left 4 Dead 3 level.
Speaking of visibility, the images you see were mostly about lighting tests, hence the combinations of comfortably wide open spaces and uncomfortably narrow, claustrophobic settings that are characteristic for L4D franchise.
Moreover, the level's design and theme look like Valve's redesign of Left 4 Dead 2's plantation level rebuilt in Source Engine 2, which leaked in 2014. For what it's worth, the timeline too suggests that the leak is accurate, although it gets difficult navigating among Valve's cancelled games.
Of course, none of this matters much knowing that Left 4 Dead 3 has been cancelled, and with the Epic Games Store giving Valve trouble on the Steam side of things, it's increasingly unlikely we ever will.
It's pretty funny though, seeing the almost-archeological digging through Valve's files, and it goes to show just how anxious gamers are to see Gabe and Co knock one out of the park, like they used to.