An industry veteran, Sweeney is perhaps best known for his work on the Unreal Engine and the creation of the game ZZT. As CEO of Epic Games, he oversaw Gears of War before the studio sold it to Microsoft. The Unreal game series was one of Epic's early hits. Sweeney is also a philanthropist, recently donating $15 million for wildlife conversation efforts in his home state of North Carolina, which is where Epic Games is based.
