It's been 15 years and the wait sure is worth it!
You are humanity's only chance for survival. Earth has been captured by an evil alien empire known as the Combine. You are Alyx Vance, member of the anti-Combine resistance, on a mission to rescue your father.
"A stunningly rich experience from start to finish, Half-Life: Alyx is one of the best VR titles available" - VRFocus
It's a fully immersive experience using your whole body to lean around cover to shoot the bad guys, rummage through shelves to find health kits, or pull a headcrab off your face and throw it out a window.
Check out some more reviews:
"There have been many moments that have left me breathless." - Washington Post
"Almost everything the franchise did best is elevated by VR." - Gamespot
"I laughed, I cried, I screamed, I went through the whole gauntlet of emotions playing this game" - Fish (Steam user)