Looking Glass Studios was an American video game developer founded in 1990 as Blue Sky Productions by Paul Neurath in Salem, New Hampshire. The company's first game was Ultima Underworld: The Stygian Abyss in 1992, which received widespread critical acclaim and sold nearly 500,000 units. Looking Glass proceeded to develop titles in multiple genres, including role-playing, sports, flight simulation, and stealth video games. These titles were primarily published by Origin Systems, Electronic Arts and Eidos Interactive, with three titles self-published by Looking Glass Studios.