Since .jar files are Java-based, you must have a Java environment set up to execute them.
: You play as a male protagonist; as of recent major updates, a female player character is not available. File: Night_Games_-_REb5_Premium.jar ...
: Save files are generally stored in a folder within the game's directory or your user's local app data folder. Since .jar files are Java-based
: If double-clicking doesn't work, open a command prompt or terminal in the file's folder and type: java -jar Night_Games_-_REb5_Premium.jar . as of recent major updates
: While programs like WinRAR or 7-Zip can extract the contents of a .jar file, doing so will only show you the raw code ( .class files). To play, you must run the file as an executable, not extract it.