The file appears to be a compressed archive containing a specific development or experimental build associated with the Obscure video game franchise . This franchise consists of two survival horror games known for their unique "drop-in/out" cooperative play. File Overview
: The core files needed to run that specific version of the game. File: Obscure.Build.215286.zip ...
: Right-click the folder and select Extract All... to unzip the contents into a standard directory. The file appears to be a compressed archive