Apogee Software ( 1987 - 1994 )
"Apogee Software (currently known as 3d Realms) is the name of a computer game publisher and developer based in Garland, Texas, established in 1987. It is best known for popularizing the shareware dist .." more.

Blizzard Entertainment ( 1991 - Present )
"Blizzard Entertainment® is a premier developer and publisher of entertainment software. After establishing the Blizzard label in 1994, the company quickly became one of the most popular and well-respe .." more.

Bluemoon Software ( 1989 - 1998 )
"Bluemoon Software consists of 2 classmates friends: Jaan and Priit from Estonia.
Their first game release was Kosmonaut. A second version, 3D equipped, was the famous one among the similar game, .." more.

Interplay Entertainment ( 1983 - 2004 )
"The company was founded as "Interplay Productions" in Southern California in 1983 with Brian Fargo as president. Its original staff came from former employees of a small video game developer called Bo .." more.

Sierra On-Line ( 1980 - Present )
"Sierra Entertainment is an incorporated entertainment software company which is headquartered in Los Angeles (US).
It was founded in 1979 by Ken Williams as On-Line Systems, before being renamed S .." more.