It was created by Yellowstone co-creator Taylor Sheridan, and it counts The Wolf of Wall Street writer Terence Winter as showrunner.
Stallone stars as Dwight "The General" Manfredi, a New York mafia capo who is released from prison after 25 years at the start of the series.
Mayor of Kingstown and 1883 have already been hits, and Lioness, Land Man, 1932, and Bass Reeves are now in development. He is also working on another Yellowstone spinoff, 6666.