Stalker 2: Heart of Chornobyl looks set to release on 1st December, 2023.
That’s according to distributor Plaion (formerly known as Koch Media), which is listing a firm release date of 1st December on its website, even though a release date has not yet been confirmed by development studio GSC Game World, which is also self-publishing the first-person shooter survival horror game.
As noted by Andrew Marmo (thanks, wccftech), who spotted the listing, it seems unlikely that this is a placeholder, as the website is listing other games with no firm release window with the placeholder date of 31st December, 2023.