Epic Games

Founded as Potomac Computer Systems in 1991, Epic Games is the creator of the Unreal Engine, as well as the Unreal, Gears of War, and Infinity Blade game series and the ever popular Fortnite. The Unreal Engine powers many of the top games on the market and was made available for free to the public in 2015. The Unreal Engine is a leader in VR game development.