More Possible Half-Life 3 Leaks

How Can We Resist?
Ah Half-Life 3, the long awaited sequel to the amazing Valve series which has been the source of uncountable rumours and trolling posts all across the interwebs. It’s been a long 11 years since Gordon Freeman was last seen, unless you count the release of Black Mesa, Half-Life 1 on the Source Engine, in which case it’s only been a long five years. Tyler McVicker has been tearing apart recent Source engine changes in the search for evidence of the return of the Half-Life series. Recently he discovered a file called AI_baseNPC.fgd, which includes suspicious references to machinery and alien blood, neither of which would apply to the DOTA 2 updates. There is also codes to allow the Source Engine to tweak the level of an NPC’s AI simulation based on its distance from the player, again something you won’t need in DOTA 2.
There was also good news for AMD users as another update which suggests that AMD’s AI-powered FidelityFX Super Resolution upscaling will work in Valve’s secret HLX project. There are more unofficial hints about Half-Life 3 in the Ars Technica article to raise your hopes for the sequel we have been teased with again and again. Let’s hope Valve doesn’t break our hearts again.
The strings suggest a wave of behind-the-scenes Source engine changes dealing with the kind of "optimization and polish" that "happen[s] at the end of a game's production cycle," McVicker says. "This is getting to the point where it does feel as if Valve is nearing completion of the production of HLX."
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Calling it now. IF it’s coming, and that’s a big IF it’s going to be Half Life ZERO or 1.5: The 7 hour war. And that’s probably for the best, at this point, is there anything they could do to end the story and make us happy? Probably not
If Valve returns to Half-Life, a Seven Hour War prequel (Half-Life: Zero or 1.5) makes sense—a fresh start, no pressure to “end” Gordon’s story. Expectations for a true finale are too high, and Alyx already hinted at rewrites.