Valve Developer Mentions 'HLX', Possible Code Name for Half-Life 3

Developer's Mention of HLX

During the GameSoundCon 2026 event in Burbank, California, Valve composer Mike Morasky publicly referenced 'HLX', the code name associated with the long-awaited Half-Life 3. This marks the first time a Valve employee has mentioned the name, which has circulated previously only through game file analyses and insider claims.

Morasky spoke about Valve's audio engine and mentioned HLX while discussing HDR audio systems. He stated, "'Deadlock' has its own HDR, and HLX also has its version." His comments prompted a notable reaction from fellow panelist David Feise, who whispered, "Well done," and later joked about how relieved he was that HLX was only mentioned once during the discussion.

Background on HLX

The HLX designation has been a topic of speculation for years, appearing in Valve's game files and linked to Half-Life 3. This follows the pattern set with 'Half-Life: Alyx', which had the internal code name 'HLVR'. Tyler McVicker, a notable figure in Valve news, previously claimed that HLX was fully playable, although expected release timelines have not materialized.

Fans are particularly eager for news due to the long gap since the last official installment, 'Half-Life 2: Episode Two', which was released in 2007. Morasky's comments suggest that HLX is indeed an active internal project at Valve, complete with its own audio settings.

Uncertainty Remains

Despite this revelation, there is currently no evidence that HLX is definitively Half-Life 3. The only confirmed detail is that HLX is an internal project utilizing a separate audio configuration. Specifics regarding the genre, platforms, or potential release date remain undisclosed, and Valve has not provided an official statement regarding these developments.