The gaming company Bethesda, the maker of such popular games as Skyrim and the 2016 remake of DOOM, has released a teaser trailer for its upcoming game, Fallout 76.

What exactly the game is about is still unknown, but gamers now know that it is set in the Fallout universe and that it runs off the Fallout 4 engine. This follows the pattern established in the last generation, When Fallout 3 was followed by Fallout: New Vegas, another new game that used the same engine as its predecessor but wasn’t a full sequel.

The teaser is a roaming camera showing footage of what seems to be an abandoned vault after a celebration. John Denver’s “Take Me Home, Country Roads” is playing, while a man on a television talks about rebuilding the wasteland.

There’s a sign that indicates the dwellers were celebrating something known as Reclamation Day. This leads fans to believe that this game will be based on the first generation of vault dwellers and their experience stepping into the wasteland for the first time.

In Fallout, the timeline says that the bombs originally fell in 2077; a poster in the trailer is commemorating America’s 300th anniversary — so 1776 to 2076.

This might imply that the people of vault 76 were taught to believe it is their duty to resettle the wasteland after the bombs fell.

More will be announced about Fallout 76 at the Bethesda press conference at E3 on June 10.