Looks like Microsoft is taking a page out of Fallout lore and naming one of their subsidiaries accordingly, as the company has announced that they have established “Vault” — a new subsidiary that is specifically tasked with handling their acquisition of ZeniMax and by extension Bethesda.

Spotted by Eurogamer, the filing is in line with Microsoft preparing a whopping $7.5 billion just for the acquisition alone. The company is getting ready to absorb ZeniMax and its properties — which includes the libraries of Bethesda and their works which include The Elder Scrolls  and Fallout series, as well as id Software’s Doom franchise.

“The concentration is accomplished by way of a merger pursuant to which a newly created Microsoft subsidiary (‘Vault’) will be merged with and into ZeniMax,” the filing reads.

While the new subsidiary is named after the series of vaults seen in the Fallout series where pockets of humanity reside in after nuclear war has consumed the planet, it doesn’t mean that ZeniMax games are going to be all exclusive for the company alone. The acquisition however will give Microsoft first dibs on releases — which will allow future Bethesda games to be on Xbox Game Pass from day one. Time will tell for sure on how things will play out once the merger is done.

The ZeniMax acquisition follows just days after the passing of the company’s co-founder and CEO, Robert A. Altman.