If you want to be one of the first to try Fallout 4’s first round of downloadable content for the game, check your email right now.

Those who previously signed up for access to the DLC’s beta should be receiving invitations from Bethesda today and should be able to play immediately upon receiving the invite.

Bethesda announced the invites were going out earlier today on Twitter.

Fallout 4’s first DLC is named Automatron and launches for PS4, Xbox One and PC on Tuesday, March 22nd.

“In Automatron, the mysterious Mechanist has unleashed a horde of evil robots into the Commonwealth, including the devious Robobrain. Hunt them down and harvest their parts to build and mod your own custom robot companions. Choose from hundreds of mods; mixing limbs, armor, abilities, and weapons such as the all-new lightning chain gun. Even customize their paint schemes and choose their voices!”