John Calhoun (software developer)

John Calhoun is an Apple Macintosh software developer. In the late 1980s and early 1990s, he developed a series of shareware games (Glider, Glypha, etc.) for the Macintosh and Windows, under the name Soft Dorothy Software. He initially published his own games, but later published through Casady & Greene.

His most famous creations are the Glider series: Glider, Glider 4.0, and Glider PRO. In addition, he created the shareware games Glypha III, Stella Obscura, MacTuberling, and commercial games Pararena and Spaceway 2000 (co-written with Jeff Robbin), and an Apple Newton game, Silicon Casino.

After the bankruptcy of Casady & Greene in 2003, Calhoun released Glider PRO as freeware on his personal website.

Calhoun has since joined Apple Macintosh's programming team. Calhoun cited poor financial returns on games outside the Glider series as his primary reason for leaving the game development field.