Name: Half-Life: Alyx
Website: https://store.steampowered.com/app/546560/HalfLife_Alyx/
Status: Released
Release date: 24/03/20
Availability: Purchase
The NoVR mod allows this game to be played with a keyboard and mouse. I have no idea how well it works or how incremental the sensitivity options are, but it seems to be improving at a promising rate. The SoMNst mod is also shaping up nicely too but remains unreleased. NoVR can be found here: https://www.moddb.com/mods/half-life-alyx-novr
Thanks!