'Half-Life: Alyx' is a VR prequel set before the events of 'Half-Life 2'
 

After more than 12 years, Valve is officially returning to the Half-Life universe. Half-Life: Alyx is a "full-length" VR entry into the series -- but if you were thinking we'd finally find out what happened after the events of Half-Life 2: Episode Tw...

https://www.engadget.com/2019/11/21/...ve-VR-prequel/