If your interest is specifically in the (the version in that zip file), it includes:
The specific filename "File: Dear.Esther.Landmark.Edition.zip" does not appear in formal academic literature. It is the naming convention typically used by or private torrent trackers to distribute the 2017 remastered version of the game .
: A shift from the original Source engine for better performance.
Explores why Dear Esther sparked debates on what constitutes a "game."
: Improved graphical options and controller support.
If you have access to databases like JSTOR or Google Scholar, look for these influential papers: