==On-Line Systems==
===(1980-1985)===
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Sierra Entertainment 01.jpg
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==Sierra On-Line==
===1st Logo (1982-1997)===
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Sierra Entertainment 02.jpg
Sierra Entertainment 03.jpg
===2nd Logo (1995-1997)===
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Sierra Entertainment 15.jpg
===3rd Logo (August 21, 2001-October 4, 2002)===
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Sierra On-Line (2001, Widescreen).jpg|Widescreen version.
==Sierra Entertainment==
===1st Logo (February 14, 2002-November 21, 2008)===
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Sierra Entertainment 22.jpg|Standard Mountain
Sierra Entertainment 23.jpg|Full widescreen version
'''Logo:''' On a white background, we see the bottom of a snowy mountain. As the white clears to reveal a {{color|blue}} sky, it reveals the familiar mountain with snow and mist all around the {{color|red|reddish}} rock. As it zooms out, the background fades to black and the mountain fades to the logo, which is a modified version of the familiar mountain still moving in it. When it stops moving, a flurry of snow comes from the corner and takes the logo with it. It then clears out, with the logo fading back in, along with a modified version of the "SIERRA" text from before (minus the wing).
'''Trivia:''' The logo was originally produced in a full 16:9 widescreen ratio, however, every Sierra title would use a cropped 4:3 version, which itself was sometimes cropped into a matted widescreen ratio on some games. The only time you ever get to see the true widescreen version is through the warp-speed version introduced in 2006., and it's is unknown if any Sierra title used a standard full widescreen version of the logo.
'''Variants:'''
** It has appeared in many PC titles including ''Emperor: Rise of the Middle Kingdom'' (Matted), ''No One Lives Forever 2: A Spy in H.A.R.M.'s Way'', ''NASCAR Racing 2003 Season'' (with the Tribal track), ''The Lord of the Rings: War of the Ring'' (with the opening theme), ''SWAT 4'', ''F.E.A.R.'', ''Joint Task Force'', among others.
*** ''Contract J.A.C.K.'', ''Homeworld 2'', ''Ground Control II: Operation Exodus''and ''Empire Earth II'' all pair this logo with the [[Vivendi Games|Vivendi Universal Games]] logo, where the latter logo appears before the Sierra logo.
** It was not used on either retail release of ''Counter-Strike: Condition Zero'' or ''Half-Life 2'', even though the print logo was present on the packaging. The former game has no opening logos at all, and the latter only has Valve's logo.
** The Sierra Home variant was seen on Sierra published software from 2002-2004.
** The later shorter version was first used on ''Ceasar IV'' for PC and is the only PC-only title to use it, with the other Sierra PC titles also being available on consoles as well.
*** As with some PC titles, the European version of ''Judge Dredd: Dredd vs. Death'' (PlayStation 2/GameCube/Xbox/PC), ''The Hobbit'' (PlayStation 2/GameCube/Xbox/PC, used tribal theme), ''Metal Arms: Glitch in the System'' (PlayStation 2/GameCube/Xbox) , ''Leisure Suit Larry: Magna Cum Laude'' (PlayStation 2/Xbox/PC), ''Robots'' (PlayStation 2/GameCube/Xbox/PC), and ''Predator: Concrete Jungle'' (PlayStation 2/Xbox) all pair this logo with the Vivendi Universal Games logo. However they are paired differently. The former three titles pair it with the last VU Games logo, while the latter two titles pair it with the third VU Games logo, and have it appear before rather than after.
** Many European VU Games titles use Sierra logos on the packaging, but in-game, only the Vivendi Universal Games logo appears.
** ''SWAT: Global Strike Team'' also uses the Sierra logo on the entire packaging in all regions, but in-game, only Vivendi Universal Games' logo appears.
** The shorter version appears on ''Scarface: The World is Yours'' (PlayStation 2/Xbox/PC/Wii), ''Scarface: Money. Power. Respect.'' (PSP), the console ports of ''F.E.A.R.'' (Xbox 360/PlayStation 3) ''Eragon'' (PlayStation 2/Xbox/Xbox 360/PC), ''The Legend of Spyro: A New Beginning'' (PlayStation 2/GameCube/Xbox), ''M.A.C.H. Modified Air Combat Heroes'' (PSP), ''TimeShift'' (PlayStation 3/Xbox 360/PC), ''Crash of the Titans'' (PlayStation 2/Wii/Xbox 360/PSP), ''The Legend of Spyro: The Eternal Night'' (PlayStation 2/Wii), ''The Spiderwick Chronicles'' (PlayStation 2/Wii/Xbox 360/PC), ''Robert Ludlum's The Bourne Conspiracy'' (PlayStation 3/Xbox 360), ''Crash: Mind Over Mutant'' (PlayStation 2/Wii/Xbox 360/PSP) and ''The Legend of Spyro: Dawn of the Dragon'' (PlayStation 2/PlayStation 3/Xbox 360/Wii).
** The still version appears on a small selection of titles, such as ''Tribes: Arial Assault'', ''Tribes: Vengeance'' ''Geometry Wars: Galaxies'', and ''The Mummy: Tomb of the Dragon Emperor''.
===2nd Logo (July 30, 2014-)===
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