Update 2: It's official, Half-Life: Alyx is happening. Valve's long-awaited "flagship VR game" will be revealed to the world at 10 am PT/1 pm ET on November 21. The tweet comes from a relatively new account—created June 2019—with a small number of followers, and this is actually its first tweet. It's also odd that Valve would make such a big announcement over a channel that so few people were paying attention to. The official Steam Twitter feed, to compare, has 5.2 million followers.

But it's verified, and the tweet has been retweeted by a few Valve folks, so we're confident it's legit: A new communications channel for a "new" kind of Valve, maybe.

We'll keep you posted.