Edison's Conquest of Mars attempt at fiction, the book was published serially in the "New York Journal". Serviss went on to write other science fiction stories, arguably making him the first American to write science fiction professionally. An early example of what would later be called space opera, "Edison's Conquest of Mars" was also a particularly literal "Edisonade". The book contains some notable "firsts" in science fiction: alien abductions, spacesuits (called "air-tight suits": see Spacesuits in fiction), aliens building the Pyramids, space battles, oxygen pills, asteroid mining and disintegrator rays. The book is set following the abortive Martian attack depicted in "Fighters from Mars",
Terraforming of Mars have risen high enough for seas and rivers to form. The 1993 space trading and combat game "", as well as its sequels "" (1995) and "Elite Dangerous" (2014), feature a terraformed Mars. The 1997 PC Real-time strategy game "Dark Colony" is based on a human-terraformed Mars, featuring a war between the colonizing humans and invading aliens of various life forms, with much use of biological warfare. The aliens try to colonize the terraformed planet for its resources. The 2009 video game "" is set on a partially terraformed Mars, in which human beings are able to walk and breathe