On-Line Systems also used the Sierra On-Line brand before officially changing to the Sierra name in 1982.
The design of this logo may vary depending on which game is played.
In 1998, the mountain-in-a-circle was dropped and the text changed. The company was split into five sub-brands; those being Sierra Studios, Sierra Attractions, Sierra Home, Sierra Sports and Sierra FX.
The Sierra FX brand was used for games developed by Yosemite Entertainment, which was Sierra's main headquarters. They only developed two games before they closed down; those being Quest for Glory V: Open Fire and Police Quest: SWAT 2.
The Sierra Attractions brand was used for publishing educational software and causal games.
The Sierra Home brand was used for home software like Hallmark Card Studio and MasterCook.
The Sierra Sports brand was used for sports games, and also most racing games like Grand Prix Legends.
The Sierra Studios brand was the main publishing division for Sierra On-Line.
In 2001, all of the sub-brands were reformed into one universal brand (except Sierra Home, which remained separate) under the Sierra name. Only a few games used this short-lived logo, such as The Operative: No One Lives Forever - Game of the Year Edition.
After Sierra On-Line changed their name to Sierra Entertainment, they reintroduced the mountain-in-circle logo.
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