Jon MacLellan is best known for his time while working for an American video game development company founded in what year?
Jon MacLellan Jon MacLellan is an English computer game level designer. He is best known for his time while working in England for Epic Games' sales, webmaster and technical support office where he was an active part of the game communities surrounding the game studio's games Jazz Jackrabbit 2, and Unreal. He is also credited as a level designer for the titles Jazz Jackrabbit 2, , and .
Sierra Entertainment Sierra Entertainment, Inc. (formerly On-Line Systems and later Sierra On-Line, Inc.) was an American video game publisher based in Bellevue, Washington.