Given the question: Information: - A CD-ROM is a pre-pressed optical compact disc which contains data. The name is an acronym which stands for "Compact Disc Read-Only Memory". Computers can read CD-ROMs, but cannot write to CD-ROMs which are not writable or erasable. - Criticom is a 3D fighting video game developed by Kronos Digital Entertainment and originally released in November 1995 in the USA, March 1996 in Europe and October 1996 in Japan by Vic Tokai for the PlayStation. The Sega Saturn version was released in early 1997. - Fear Effect is an action-adventure game developed by Kronos Digital Entertainment and published by Eidos Interactive for the PlayStation. A prequel was released one year later entitled "". - Roberta Williams (born February 16, 1953) is an American video game designer, writer, and a co-founder of Sierra On-Line (later known as Sierra Entertainment), who developed her first game while living in Simi Valley, California. She is most famous for her pioneering work in the field of graphic adventure games with titles such as "Mystery House", the "King's Quest" series, and "Phantasmagoria". She is married to Ken Williams and retired from her career in 1999. Roberta Williams is one of the most influential PC game designers of the 1980s and 1990s, and has been credited with creating the graphic adventure genre. - Oberon Media is a multi-platform casual games company, delivering casual games across online, social, mobile/Smartphone, interactive TV and retail categories. Oberon games have been adopted by global digital and media companies, such as Acer, Microsoft, AT&T, Yahoo!, Electronic Arts, and Orange France. - King 's Quest VI : Heir Today , Gone Tomorrow is the sixth installment in the King 's Quest series of adventure games produced by Sierra On - Line . Written by Roberta Williams and Jane Jensen , King 's Quest VI is widely recognized as the high point in the series for its in - depth plot , landmark 3D graphic introduction movie ( created by Kronos Digital Entertainment ) , and professional voice acting ( Hollywood actor Robby Benson provided the voice for Prince Alexander , the game 's protagonist ) . King 's Quest VI was programmed in Sierra 's Creative Interpreter and was the last King 's Quest game to be released on floppy disk . A CD - ROM version of the game was released in 1993 , including more character voices , a slightly different opening movie and more detailed artwork and animation . The name of this sequel is a pun on the common phrase '' here today , gone tomorrow '' . This pun is related to the abrupt departure of Prince Alexander after the events of King 's Quest V , where he was just rescued by King Graham along with Princess Cassima , who asked Alexander to come visit her at the end of that game . King 's Quest III : To Heir Is Human also contained the word '' heir '' in its title and also featured Prince Alexander ( then known as the slave Gwydion ) as the main character . - King's Quest V: Absence Makes the Heart Go Yonder! is a 1990 graphic adventure game by Sierra On-Line. Originally released in November 1990, it featured a significant improvement in graphics (achieved through the introduction of VGA into the series). It was also the first "King's Quest" installment to replace the typing user interface with a point-and-click user interface. The title is a spoof on the proverb, "Absence makes the heart grow fonder." - Gabriel Knight is a series of point-and-click adventure games developed and released by Sierra On-Line in the 1990s. Activision currently holds the rights to Gabriel Knight. Series creator Jane Jensen hopes that the launch of her new studio, Pinkerton Road Studio will lead to a fourth Gabriel Knight game in the future. - Jane Jensen (born January 28, 1963 in Palmerton, Pennsylvania) is an American video game designer most known of the "Gabriel Knight" series of adventure games and an author of novels. She has co-founded Oberon Media and Pinkerton Road video game development companies and also writes romance under the name Eli Easton. - Compact disc (CD) is a digital optical disc data storage format released in 1982 and co-developed by Philips and Sony. The format was originally developed to store and play only sound recordings but was later adapted for storage of data (CD-ROM). Several other formats were further derived from these, including write-once audio and data storage (CD-R), rewritable media (CD-RW), Video Compact Disc (VCD), Super Video Compact Disc (SVCD), Photo CD, PictureCD, CD-i, and Enhanced Music CD. Audio CD players have been commercially available since October 1982, when the first commercially available CD player was released in Japan. - Robin David Segal (born January 21, 1956), better known by the stage name Robby Benson, is an American actor, director, singer, and teacher. He is known as the voice of The Beast from the Disney animated film, "Beauty and the Beast". - Sierra Entertainment (previously Sierra On-Line, commonly referred to as Sierra) is an American publisher founded in 1979 as On-Line Systems by Ken and Roberta Williams. Based in Oakhurst, California and later in Fresno, California, the division is now owned by Activision, a subsidiary of Activision Blizzard. - Dark Rift is a 3D fighting video game for the Nintendo 64, notable for being the first N64 game to use 60 frames per second. It has been referred to as the Nintendo 64's first native fighting game, though in actuality it is a port of a cancelled Sega Saturn game. - King's Quest is a graphic adventure game series created by the American software company Sierra Entertainment. It is widely considered a classic series from the golden era of adventure games. Following the success of its first installments, the series was primarily responsible for building the reputation of Sierra. Roberta Williams, co-founder and former co-owner of Sierra, designed all of the "King's Quest" games until the series' reboot in 2015. - Cardinal SYN is a fighting video game developed by Kronos Digital Entertainment, the creators of "Criticom" and "Dark Rift", and published by Sony through their 989 Studios in 1998. - Kronos Digital Entertainment was an American video game developer founded by Stan Liu in 1992. They first began to develop original properties, beginning with their visually appealing early 3D fighting games, Criticom, Dark Rift and Cardinal Syn (referred to as the "Trilogy of Terror" by one gaming journalist). The organization later gained greater critical and commercial success for the Fear Effect series with Eidos, although Kronos retains all rights to the franchise. Kronos was busy developing the third installment in that series, "Fear Effect Inferno", when publisher Eidos discontinued funding for the project following a major restructuring of their budget. The developer then shopped it around to other publishers but were unable to secure another deal to get the game finished. The company disbanded soon after, with "" being their final released game. Given the information above, choose from the list below the object entity that exhibits the relation 'developer' with the subject 'king's quest vi'. Choices: - 989 studios - activision - actor - at & t - king - kronos digital entertainment - microsoft - nintendo - oberon media - philips - sierra entertainment - sony - success
The answer is:
sierra entertainment