Flight Unlimited II is a 1997 flight simulator video game developed by Looking Glass Studios and published by Eidos Interactive. The player controls one of five planes in the airspace of the San Francisco Bay Area, which is shared with up to 600 artificially intelligent aircraft directed by real-time air traffic control. The game eschews the aerobatics focus of its predecessor, Flight Unlimited, in favor of general civilian aviation. As such, new physics code and an engine were developed, the former because the programmer of Flight Unlimited’s computational fluid dynamics system, Seamus Blackley, had left the company.
The team sought to create an immersive world for the player and to compete with the Microsoft Flight Simulator series. Commercially, Flight Unlimited II performed well enough to recoup its development costs. Critics lauded the game’s graphics and simulated airspace, and several praised its physics. However, some considered the game to be inferior to Microsoft Flight Simulator ’98. Following the completion of Flight Unlimited II, its team split up to develop Flight Unlimited III (1999) and Flight Combat (later Jane’s Attack Squadron) simultaneously. Both projects were troubled, and they contributed to the closure of Looking Glass in May 2000.

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