Steampunk is a sub-genre of science fiction that features steam-powered technology and is often set in a 19th century Victorian era or Wild West setting. The term "steampunk" first appeared in 1987 but refers retroactively to works from as early as the 1950s-1960s. Steampunk also refers to artistic styles and subcultures inspired by Victorian-era fiction and mid-20th century films that modify modern objects in a pseudo-Victorian mechanical "steampunk" style. Since the 1990s, the steampunk label has expanded to include fantasy worlds relying heavily on steam- or spring-powered technology seen in role-playing games and films from that era.