He is mainly known for a series of violent, bleak stories set in the cyborg dystopia of Moderan, which collectively form a satire on humanity’s obsession with violence and control.
He later worked as a cartographer and map-chart editor for the Defense Mapping Agency in St. Louis until he retired in 1973 to pursue full-time freelance writing.
Throughout his career, Bunch worked on a group of satirical far-future SF stories set in Moderan, a version of Earth paved over entirely with gray plastic and controlled by perpetually warring cyborg fortresses.
Although the society of Moderan seems to project an appearance of personal valor and military perfection, its citizens are ultimately powerless, dominated by their own petty insecurities and hubris.
In 2018, New York Review Books Classics published an updated Moderan collection, including stories not found in the original edition.