The U.S. company behind mega-hit Fallout, Bethesda Softworks has acquired Halifax-based mobile developer Alpha Dog Games, according to gaming industry publication gamesindustry.biz. Alpha Dog's is best known for MonstroCity: Rampage a free-to-play tower defence strategy game first launched in 2016 where players build cities while sending their own army of giant monsters to destroy their opponents' creations. It also created the action role-playing game Wraithborne. The company's latest project is Ninja Golf, a free-to-play remake of the Atari 7800 game that was launched earlier this year. Alpha Dog was founded in 2012 by Shawn Woods and Jeff Cameron. Both are veteran developers who also serve on the board of directors for the Interactive Society of Nova Scotia, with Cameron serving as the board's president. Bethesda Softworks, based in Rockville, Maryland, was founded in 1986 by Christopher Weaver. In 2001, Bethesda spun off its in-house development team into Bethesda Game Studios, and Bethesda Softworks became a publisher. It also publishes games by ZeniMax Online Studios, id Software, Arkane Studios, MachineGames, Tango Gameworks and now Alpha Dog.