The next game in the Fallout series is called Fallout 76
https://thenextweb.com/gaming/2018/05/30/1127558/
Last night, Bethesda set the Internet ablaze by hinting at a new installment in the Fallout series. Now, we know what it’s called: meet Fallout 76.
“#Fallout76 – the newest game from Bethesda Game Studios. See more at the #BE3 Showcase – June 10th @ 6:30pm PT pic.twitter.com/wKeIq66tzR