There are several PC games with the title "The Librarian" or similar that are available for free download, primarily from indie developer platforms.
: These platforms offer extensive "Free to Play" and "Free" categories for full-version indie and AAA titles. How to Get Paid Games for FREE in 2025 (Legally!) librarian-pc-game-free-download-full-version
This is a highly-rated, narrative-driven point-and-click horror adventure game. You play as Liz, a librarian who uncovers supernatural mysteries in a fantasy world. There are several PC games with the title
This is a different title focused on a "legend quest" style of gameplay. It has undergone multiple updates, reaching a final release version. reaching a final release version.