Wikipedia
Shannara is a series of high fantasy novels written by Terry Brooks, beginning with The Sword of Shannara in 1977 and continuing through The Sorcerer's Daughter which was released in May 2016; there is also a prequel, First King of Shannara. The series blends magic and primitive technology and is set in the Four Lands, which are identified as Earth long after civilization was destroyed in a chemical and nuclear holocaust called the Great Wars. By the time of the prequel First King of Shannara, the world had reverted to a pre-industrial state and magic had re-emerged to supplement science.
Shannara is a computer game released in 1995 for DOS and Microsoft Windows. It is based on the Shannara series of books by Terry Brooks.