Question: is dying light the following a separate game

Answer: No, Dying Light: The Following is an expansion pack for the open-world first-person survival horror video game Dying Light. The game was developed by Techland, published by Warner Bros. Interactive Entertainment, and released for Microsoft Windows, Linux, PlayStation 4, and Xbox One on February 9, 2016. The expansion adds characters, a story campaign, weapons, and gameplay mechanics. Dying Light: The Following -- Enhanced Edition includes Dying Light, Dying Light: The Following, and downloadable content released for the original game.