: The Quake Steam Store page provides the most stable, up-to-date version with built-in online multiplayer support.
The specific build number (December 2, 2021) likely refers to a minor update or patch for the Quake Enhanced version released by Bethesda and id Software in August 2021.
: The modern version includes cross-play and official servers. If you are looking for the original 1996 experience, many fans use community "source ports" like QuakeSpasm or nQuake (popular for online QuakeWorld play), which require the original game's .pak data files.
: Offers a DRM-free version of the Quake Enhanced remaster. Important Notes
While there isn't a single official "online" download link for a specific historical build, you can access the game through these official platforms: