Six years in the making and more than twenty years in the waiting, we can finally say this: Baldur’s Gate 3 is out now on PC! It's time to gather your party and venture forth. Make sure you're sufficiently prepared with our tips for ensuring a smooth transition from Early Access to release. If you have questions or run into issues, check the FAQ below or contact our support team.
I would make a review thread but it seems like reviewers just started playing, so there aren’t many yet.
Except it’s not available on Mac on day one. Larian hasn’t even announced when it will be aside from “at a later date.”
Update: Apparently, the Steam Discussions page has a post that lists it as September 5.