The Software Toolworks
The Software Toolworks started in 1980 as a publisher of software for Heath/Zenith personal computers. Early products included MYCHESS, The Original Adventure, and the C/80 C compiler for CP/M. In 1994, The Software Toolworks acquired Mindscape, setting it up as its development studio.
The company is best known for their chess games and educational Mario titles. The Toolworks also created the Miracle Piano Teaching System.
The Software Toolworks is now a part of The Learning Company.