A couple of decades ago, Valve was pretty much a nobody. Then, it made Half-Life and the rest, as they say, is history. However, after making several expansions for 1998's Half-Life and 2004's Half-Life 2, Valve has found itself in a constant struggle to kick off another Half-Life project only to shelve it. It took almost two decades for Valve to release 2020's Half-Life: Alyx, a VR title that was met with both commercial success and critical acclaim.
Due to the success of Half-Life: Alyx, fans have been wondering if Valve has plans on working on Half-Life again, but as it turns out, this isn't the case.
Valve directly addresses Tylver McVicker
According to Tyler McVicker, Valve's decision not to make a follow-up game to Alyx is because of Facebook (now Meta). Because the company has acquired most of the big VR developers on the market, Valve has lost interest in VR. But, instead of shelving their VR projects, McVicker claims that Valve is reworking a certain "Project Citadel" from a PCVR title to a Steam Deck game.