At QuakeCon this year, Bethesda confirmed that Fallout 76 is going to be releasing exclusively on Bethesda.net with no support for Steam. The company has since clarified that future games may very well remain on Valve’s platform going forward.
“We did not announce ‘all future Bethesda games will not be on Steam,’” Hines explained. “That is not what we said. We said ‘this game will be available exclusively on Bethesda.net.’”
The news comes from an interview done by Pete Hines at QuakeCon, where he expanded on Bethesda’s decision to limit Fallout 76’s release to just the Bethesda launcher. He spoke about wanting to keep the game purely within their control - at least at the beginning - so they can more effectively troubleshoot when something goes wrong.