Synergistic Software was a video game developer based in Seattle. Founded in 1978, the company published some of the earliest available games and applications for the Apple II family of computers. They continued developing games for various platforms into the late 1990s. History Synergistic was founded in 1978 by Robert Clardy and Ann Dickens Clardy. They developed the Dungeons & Dragons-inspired Dungeon Campaign / Wilderness Campaign game, which was later expanded and repackaged as Odyssey: The Compleat Apventure. Synergistic also published a number of business applications, including a word processor and simple database program, called The Modifiable Database. Synergistic was acquired by Sierra On-Line in 1996. They maintained their identity as an independent development group within Sierra until the studio was closed on February 22, 1999. Software Campaign-Adventure series Dungeon Campaign (1978) Wilderness Campaign (1979) Odyssey: The Compleat Apventure (1980) Apventure to Atlantis (1982) World Builders engine series War in Middle Earth (1988) Spirit of Excalibur (1990) Vengeance of Excalibur (1991) Conan: The Cimmerian (1991) Warriors of Legend (1993) Non-games Higher Text II (1980) Data Reporter (1981) Other games Escape from Arcturus (1981) Bolo (1982) Crisis Mountain (1982) Probe One: The Transmitter (1982) Microbe (1983) The Fool's Errand (1986), MS-DOS port Pitstop II (1984), Atari 8-bit port Thexder (1985), MS-DOS port Rockford (1988) SideWinder (1988) Silpheed (1988), MS-DOS & Apple IIGS ports The Third Courier (1989) Low Blow (1990) The Beverly Hillbillies (1993) Homey D. Clown (1993) Spectre (1994) Triple Play '97 (1996) Birthright - The Gorgon's Alliance (1996) Diablo: Hellfire (1997) References External links Synergistic Software at MobyGames Defunct companies based in Washington (state) Sierra Entertainment Defunct video game companies of the United States Video game development companies Companies based in Bellevue, Washington Video game companies established in 1978 Video game companies disestablished in 1999 1978 establishments in Washington (state) 1999 disestablishments in Washington (state)