Because Steam typically only downloads the latest version, you must manually request this specific version's "depot."
: You must set Steam to "Only update this game when I launch it" in Properties > Updates to prevent Steam from immediately overwriting your files with the current version. Download Phasmophobia v0.8.0.1 OnLine
: Access Phasmophobia on SteamDB to find the necessary identifiers: App ID : 739630 Depot ID : 739631 (standard Windows content) Because Steam typically only downloads the latest version,
: In the Steam Console, type the following command and press Enter: download_depot 739630 739631 [YOUR_MANIFEST_ID] 2022) with online functionality
To download and play (a hotfix released on December 15, 2022) with online functionality, you must use the Steam Console to access the specific version's data from the Steam database.