Stranger Things has three seasons.
Stranger Things . The second season will see Schnapp and Keery promoted to series regulars , along with the addition of Sadie Sink and Dacre Montgomery . The second season is set a year after the first , and deals with attempts of the characters to return to normal and consequences from that season . On August 31 , 2016 , Netflix renewed the series for a second season of nine episodes , which is set to be released on October 31 , 2017 .