2 New Half-Life Games? Valve’s Up to Chicanery! - HLX Files #1

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Overview

This video opens Tyler’s “HLX Files” series, a piecemeal replacement for a single large 2024 Valve code datamining project. Its main new item is that Valve opened a fresh testing branch for Half-Life 2 shortly before the game’s 20th anniversary, which Tyler frames as a likely anniversary celebration but not necessarily a franchise tease. Tyler also relays secondhand claims about Valve having two non-Counter-Strike, non-Deadlock games in development, restates that the Deckard VR headset is still in production while HLX is not a VR game, and reports that Valve removed or renamed several HLX-related strings after his previous video. He is explicit that much of the framing is inference or rumor, and says he does not expect an HLX or Half-Life 3 announcement in calendar year 2024.

Mentioned events

Half-Life 2 20th-anniversary testing branch

• Description: Tyler reports that “only a couple of days ago” Valve opened “a brand new testing Branch for halflife 2,” ahead of the game’s 20th anniversary. He notes he deliberately waited until after Thursday to judge whether it was worth reporting, because “nine times out of 10 they’re going to launch something on a Thursday” and Thursday is Steam’s lowest-traffic day. Thursday passed with no launch, so the purpose of the branch remains unknown.
• Confidence: Fact — the branch is presented as an observed Steam depot/branch change rather than an announcement; the anniversary interpretation is Tyler’s inference.
• Category: Development state
• Source: Steam branch tracking observed by Tyler (comparable to the SteamDB branch tracking he cites for Half-Life 1).
• Earlier mentions: None identified in this video.
• Verification: needs follow-up — confirm the existence and contents of the new Half-Life 2 testing branch in Steam depot/branch records and whether any build was pushed.

Half-Life 1 25th-anniversary testing branches (recap)

• Description: Tyler recaps that about a year earlier Valve had secret testing branches attached to Half-Life 1 that were caught by SteamDB; these were separate builds used to test features pre-release. In November 2023 it became clear the work was for a 25th-anniversary content drop that included a completely revamped front end and engine plus new and obscure content officially added to the build.
• Confidence: Fact — presented as already-established public history from SteamDB branch tracking and the shipped update.
• Category: Release date
• Source: SteamDB tracking of Half-Life 1 test branches and the November 2023 Half-Life anniversary update.
• Earlier mentions: None identified in this video.
• Verification: verified — the November 2023 Half-Life anniversary update and its contents are publicly documented.

Half-Life 25th-anniversary cut content and Noclip documentary (recap)

• Description: Tyler notes the Half-Life 25th anniversary was also marked by the release of a small amount of official cut content and a full-length documentary made by the people behind Noclip.
• Confidence: Fact — these were public releases tied to the anniversary.
• Category: Marketing
• Source: Official Valve anniversary releases and the Noclip documentary.
• Earlier mentions: None identified in this video.
• Verification: verified — both releases are publicly available.

Anniversary as a possible franchise-tease date

• Description: Tyler says that following recent news of the next Half-Life game, many people speculate the Half-Life 2 20th anniversary could be when Valve starts teasing the franchise’s future. He concedes it “remains possible” but argues Valve “very rarely is capable of adhering to even internal deadlines,” and that although HLX has been in development at least four years, it is not far enough along to release before the end of 2024 or the first half of 2025.
• Confidence: Speculation — Tyler explicitly hedges (“I do admit that remains possible”) and bases the timeline on his own read of development progress.
• Category: Release date
• Source: Tyler’s inference from HLX development tracking and community speculation.
• Earlier mentions: None identified in this video.
• Verification: unverified — would require an official Valve announcement or a shipping build.

Pyro’s claim of two unannounced Valve games

• Description: Tyler describes a reaction video by Pyro to his previous HLX video in which Pyro said, characterized by Tyler as “unsubstantiated,” that they knew about Deadlock four years ago and that Valve currently had two different games in development outside of things like Counter-Strike and Deadlock. Tyler states Pyro is not a source he takes at face value, but says the remark was made a little under two weeks earlier and that he began asking around afterward and “did learn a few things.”
• Confidence: Mixed — the claim originates from Pyro and is explicitly labeled unsubstantiated by Tyler, while Tyler’s subsequent source-checking is asserted but not shown.
• Category: Other
• Source: Pyro’s reaction video to Tyler’s prior HLX video, plus Tyler’s own follow-up conversations with sources.
• Earlier mentions: Tyler’s previous HLX video, which Pyro was reacting to; the video does not restate that video’s specific claims beyond the reactions to them.
• Verification: unverified — would require corroborating evidence of two additional Valve projects or an on-record source.

Deckard VR headset still in production

• Description: Tyler says that after asking around he learned the Deckard, described as Valve’s next flagship VR headset, is “still very much in production” and that Valve still intends to ship the hardware.
• Confidence: Mixed — asserted as information from Tyler’s sources, but no artifact, filing, or official statement is presented.
• Category: Hardware
• Source: Tyler’s sourcing conversations following Pyro’s claim; no named document or datamine cited.
• Earlier mentions: None identified in this video.
• Verification: needs follow-up — would be confirmed by import/transport records, certification filings, or an official Valve statement.

HLX is not a VR game

• Description: Tyler states that HLX, as currently known, is not a VR game, and that this “has become even clearer following the release of the last video.”
• Confidence: Mixed — presented as a conclusion strengthened by prior datamining coverage rather than a single new artifact.
• Category: Development state
• Source: Tyler’s accumulated datamining of HLX-related code and his prior video.
• Earlier mentions: Tyler’s previous HLX video, which he says made the non-VR status clearer.
• Verification: unverified — would require HLX build or configuration evidence showing no VR/OpenVR requirements.

Expectation of a Deckard showcase game

• Description: Tyler argues that a game built to showcase the Deckard’s features “is very much going to happen,” by analogy with Half-Life Alyx showcasing the Valve Index. He suggests that if Pyro’s claim is accurate, the second unannounced game is more than likely a VR title paired with the Deckard.
• Confidence: Speculation — Tyler’s explicit expectation and analogy, not sourced evidence.
• Category: Hardware
• Source: Tyler’s inference from the Deckard’s continued development and the Half-Life Alyx/Index precedent.
• Earlier mentions: None identified in this video.
• Verification: unverified — would require a Valve VR title announcement or Deckard launch lineup.

Asymmetric Half-Life VR/PC multiplayer rumor

• Description: Tyler recounts an old rumor from about a year before Half-Life Alyx was announced: an asymmetric multiplayer Half-Life game where one player is in VR as Alyx Vance and one player is on PC as Gordon Freeman, with the two games interacting and cooperative elements between Alyx’s story and Gordon’s story. He labels it “just a rumor” that has circulated for years.
• Confidence: Speculation — Tyler explicitly calls it a rumor and offers it only as a possible explanation for the two-game claim.
• Category: Gameplay
• Source: Long-circulating community rumor predating Half-Life Alyx’s announcement; no document or datamine cited.
• Earlier mentions: None identified in this video.
• Verification: unverified — no primary evidence presented; would require project documentation or an official reveal.

Half-Life Alyx team said to be deep in Half-Life development

• Description: Tyler says the Half-Life Alyx team is “deep in halflife development right now across the board,” citing Gabe Newell’s statement shortly after Alyx’s launch that the team’s enthusiasm and efficiency were at an all-time high even after shipping. Tyler concedes the fruits of that labor have not been seen publicly.
• Confidence: Mixed — the Gabe Newell quote is an official statement, while the claim about what the team is working on now is Tyler’s inference.
• Category: Development state
• Source: Gabe Newell’s public remarks after Half-Life Alyx’s launch, plus Tyler’s inference from continued team activity.
• Earlier mentions: None identified in this video.
• Verification: needs follow-up — the Newell quote is checkable; current team assignments are not.

Half-Life asset labeling conventions and build tools

• Description: Tyler describes internal tooling details: Half-Life assets are specifically labeled with an alien head for anything related to Xen; the “build break master” that checks whether the build works is depicted as Gordon Freeman with a crowbar; and the external playtester bug reporter is now publicly known because of a leak in the latest Dota 2 update that lists HLX as one of the modes within the external bug reporting system.
• Confidence: Fact — presented as datamined strings and tooling metadata from shipped Valve builds, including the Dota 2 update.
• Category: Technology
• Source: Datamine of Valve’s shipped code/tools, specifically the latest Dota 2 update’s external bug-reporting configuration.
• Earlier mentions: None identified in this video.
• Verification: needs follow-up — check Dota 2 build strings/configuration for an HLX entry in the external bug reporter mode list.

2024 Valve code datamining project split into series parts

• Description: Tyler says he has spent the better part of three weeks going through every piece of code Valve shipped in calendar year 2024 and is nowhere near finished; he originally expected to wrap the project in two weeks. Rather than wait until October or November for one long video, he is splitting the work into parts, intending to ship a video every two weeks (later in the video stated as every two to three weeks) covering everything found up to that point.
• Confidence: Fact — a statement about his own research process and publishing plan.
• Category: Other
• Source: Tyler’s own account of his datamining workflow.
• Earlier mentions: None identified in this video.
• Verification: verified — the resulting HLX Files installments are themselves the evidence.

Dota 2 Puppet Master and The International 2024 updates as an HLX datamining vector

• Description: Tyler notes the Dota 2 “Puppet Master” major content update and The International 2024 content update shipped the day before, meaning engine changes had to be dug through. He says Valve “reportedly uses the same code base across all projects,” sharing it across branches and modes keyed to each project’s codename, so a large Dota 2 update means HLX-related code can surface even though Dota 2 does not use the entire HLX codebase.
• Confidence: Mixed — the Dota 2 update shipping is a fact, while the shared-codebase behavior is attributed to reports and Tyler’s interpretation.
• Category: Technology
• Source: Dota 2 update release plus Tyler’s analysis of Valve’s shared engine codebase across branches.
• Earlier mentions: None identified in this video.
• Verification: needs follow-up — compare Dota 2 and HLX build strings to confirm shared code and codename-based branch separation.

Valve removed and renamed strings after Tyler’s previous video

• Description: Tyler says Valve responded to his previous video by “removing and renaming pretty much everything” he had directly reported on: the “Xen gorilla” has been removed completely, and “Houndeyes” and the “HEV suits” have been renamed to “NPC monster” and “Burbank suits,” respectively.
• Confidence: Mixed — the renames/removals are presented as observed datamined changes, while the attribution to a response to his video is Tyler’s inference.
• Category: Development state
• Source: Tyler’s comparison of HLX-related strings across Valve builds before and after his prior video.
• Earlier mentions: Tyler’s previous HLX video, which reported the Xen gorilla, Houndeyes, and HEV suit strings; this video reports they were removed or renamed afterward.
• Verification: needs follow-up — diff the relevant HLX strings across consecutive builds to confirm the removals and renames.

No expected HLX or Half-Life 3 announcement in 2024

• Description: Tyler states he does “not anticipate hlx or halflife 3 to be announced within the calendar year of 2024,” which he says gives him time to finish the datamining project.
• Confidence: Speculation — Tyler’s own forecast, offered without supporting artifact.
• Category: Release date
• Source: Tyler’s inference from HLX’s development progress.
• Earlier mentions: None identified in this video.
• Verification: unverified — would be refuted by any official 2024 announcement.

New or changed in this video

• First report of a newly opened Half-Life 2 testing branch ahead of the 20th anniversary; no Thursday launch followed, so its purpose is still unknown.
• New secondhand claim, relayed from Pyro’s reaction video and Tyler’s follow-up sourcing, that Valve has two games in development outside Counter-Strike and Deadlock.
• Restated and reinforced that the Deckard is still in production and that HLX is not a VR game; a Deckard showcase title is framed as likely.
• New datamine detail: HLX appears as a mode in Valve’s external bug-reporting system, exposed via a Dota 2 update.
• New report that Valve removed the “Xen gorilla” string and renamed “Houndeyes” to “NPC monster” and “HEV suits” to “Burbank suits” after Tyler’s previous video.
• Structural change: the planned single large 2024 datamining video is replaced by an ongoing HLX Files series shipping roughly every two to three weeks.
• Confidence levels are mostly unchanged or downgraded: the anniversary tease and 2024 announcement possibilities are both explicitly hedged.

Notable quotes

• “nine times out of 10 they’re going to launch something on a Thursday” — Tyler explaining why he waited past Thursday before reporting the Half-Life 2 testing branch.
• “Thursday came and went and so it remains to be seen exactly what kind of chicanery valve is up to for the 20th anniversary of halflife 2” — on the unresolved purpose of the new branch.
• “obviously pyro isn’t a source I’m not taking Pyro’s word it face value” — framing of the two-games claim before describing his own follow-up inquiries.
• “hlx as we know it is not a VR game” — clarification following his previous video.
• “this is just a rumor but it is a rumor that has been around for years” — on the asymmetric Alyx/Gordon multiplayer concept.
• “I do not anticipate hlx or halflife 3 to be announced within the calendar year of 2024” — his release-window expectation.

Open questions

• What is the new Half-Life 2 testing branch for, and will it produce a 20th-anniversary content drop?
• Which two projects, if any, are the non-Counter-Strike, non-Deadlock games Pyro referred to?
• Is the asymmetric VR/PC Half-Life multiplayer rumor connected to the Deckard showcase title?
• Why did Valve rename “Houndeyes” to “NPC monster” and “HEV suits” to “Burbank suits” rather than remove them outright?
• How much of the 2024 Valve codebase remains to be examined, and how many HLX Files installments will result?