He has written a range of satires on the theme of the decline of Western civilization and produced short stories, poetry, essays, and several radio plays.

Since then, he has supported himself and his family through various jobs as a pool attendant, musician, postman, truck driver, martial arts instructor, and trawler fisherman.

Another collection of stories followed this novel, Escape to Reality (1977), which pursued Foster's interest in male irresponsibility and the paradoxes of science and art.

Plumbum (1983) uses Foster's experience in jazz bands to satirise the contemporary Western adulation of rock musicians, contrasting this enthusiasm with the various religions of Bangkok and India.

Dog Rock: A Postal Pastoral (1985) offers a more benign comedy as Foster examines the trivia of an Australian country town like Bundanoon.

A second Dog Rock novel, The Pale Blue Crochet Coathanger Cover (1988), continues this nostalgic view of a disappearing rural life with particular reference to the misuse of animals.

Testosterone (1987), inspired by a residence in Venice in 1984, uses the convention of the separated twins to satirise the cultural differences between Britain and Australia, with a third possibility represented by Italy.

[citation needed] After the Australian Bicentennial celebrations of 1988, Foster published his satire of the state of contemporary Australia in Mates of Mars (1991).

Narrated by the postman of Dog Rock, D’Arcy D’Oliveres, this novel examines the destruction of the native forests of Australia and the decline of Christianity in the context of pre-Christian religious beliefs.

The novel's accompanying poem,The Ballad of Erinungerah, claims to be the work of a child of the commune and describes the visit of the goddess Brigid and her demand that the men castrate themselves.

The novel celebrates the forests in lyrical descriptions, satirises the stupidity of the communards, and translates snatches of classic texts into Australian vernacular.

Later, Foster published under his own name an essay, 'On Castration, in Heat magazine that incorporated part of the novel and argued that male sexuality is a destructive force that needs to be controlled.

For example, 'The Mine in the Moon' imagines a world without women, where boys grow up without maternal comfort; 'The Tears of the Fish' describes an orgy and castration ritual; and 'The Gilt Felt Yurt' measures the loss of freedom in the creation of civilisation and settlement.