The more than two decades since Half-Life 2's release have been filled with plenty of rumors and hints about Half-Life 3, ranging from the official-ish to the thin to the downright misleading. As we head into 2025, though, we're approaching something close to a critical mass of rumors and leaks suggesting that Half-Life 3 is really in the works this time, and could be officially announced in the coming months.

The latest tease came just before the end of 2024 via a New Year's Eve social media video from G-Man voice actor Mike Shapiro. In the voice of the mysterious in-game bureaucrat, Shapiro expresses hopes that "the next quarter century [will] deliver as many unexpected surprises as did the millennium's first (emphasis added)... See you in the new year."

...

On its own, a single in-character post from a voice actor would probably be a bit too cryptic to excite Half-Life fans who have seen their sequel hopes dashed so often over the last two decades. But the unexpected tease comes amid a wave of leaks and rumors surrounding "HLX," an internal Valve project that has been referenced in a number of other Source 2 engine game files recently.