Bethesda Softworks has acquired mobile game developer Alpha Dog Games, according to a press release.

“We are impressed by the team at Alpha Dog’s commitment to quality and depth of experience in mobile,” Bethesda senior vice president of development Todd Vaughn said in a statement. “We’re excited to have them join the Bethesda family.”

Alpha Dog is known for real-time strategy game MonstroCity: Rampage and action role-playing game Wraithborne, both of which are available on Apple and Android devices via the App Store and Google Play, respectively. The acquisition makes sense as Bethesda increases its mobile game output; in recent years, it’s launched titles like Fallout Shelter and The Elder Scrolls: Blades. While working with Alpha Dog, Bethesda should be able to create a wider variety of mobile games.

No new announcements came with the acquisition press release, but it’s only a matter of time before a new mobile title pops up under the Bethesda name.