Silicon Knights

Silicon Knights was a game development company Headquartered in St. Catharines, Ontario, Canada, founded in 1992 by Denis Dyack. In 2007, Silicon Knights sued Epic Games, the developers of the Unreal Engine, about their losses and problems related to Unreal Engine 3. However, on August 9, 2007, Epic Games counter-sued Silicon Knights over, among other things, copyright infringement related to Unreal Engine. Epic Games won on May 30, 2012. This case led Silicon Knights to multiple lawsuits, resulting in the company filing for bankruptcy on May 16, 2014.

Source: IGDB