Key facts
- Valve developer Mike Morasky mentioned "HLX" during a GameSoundCon panel.
- "HLX" is widely reported as the internal codename for a new Half-Life project.
- The codename has appeared in Valve engine code since at least 2024.
- Morasky's mention is the first public reference to "HLX" by a Valve employee.
During a panel at GameSoundCon, Valve composer and audio artist Mike Morasky inadvertently mentioned "HLX," a string of letters widely believed to be the internal codename for a new Half-Life project. The comment was captured on video and has fueled further speculation among fans about the future of the franchise. "HLX" has appeared in Valve's engine code since at least 2024, but this marks the first public reference by a Valve employee. Fellow panelist David Feise reacted with apparent sarcasm to the slip-up.