On-Line Systems
1980–1982
Sierra On-Line
1980–1983
On-Line Systems also used the Sierra On-Line brand before officially changing to the Sierra name in 1982.
1983–1993
The design of this logo may vary depending on which game it is.
1993–1998
1998–2000
In 1998, The Mountain circle was dropped and the text changed. The company split into 4 sub brands (and another for one purpose), Those being Sierra Studios, Sierra Attractions, Sierra Home, Sierra Sports and Sierra FX.
Sub-Brands
Sierra FX, Used for games developed by Yosemite Entertainment, which was Sierra's main headquarters (They only developed 2 games before closing down, those being Quest for Glory V: Open Fire and Police Quest: SWAT 2)
Sierra Attractions, used for publishing educational software and causal games.
Sierra Sports, Used for sports games, also includes most racing games like Grand Prix Legends.
Sierra Studios, the main publishing division for Sierra On-Line.
2001–2002
In 2001, all the sub-brands were formed back into one universal brand (except Sierra Home, which remained separate) under the "Sierra" name. Only a few games used this logo as it was short-lived, such as The Operative: No One Lives Forever - Game of the Year Edition
Sierra Entertainment
2002–2008
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