Ringworld series
The Ringworld series is a series of science fiction novels written by American author Larry Niven. It is part of his Known Space series of stories. Its backdrop is the Ringworld, a giant artifact 3 million times the surface area of Earth circling a star. The series is composed of four standalone science fiction novels, the original award-winning book and its three sequels:
- 1970: Ringworld
- 1979: The Ringworld Engineers
- 1996: The Ringworld Throne
- 2004: Ringworld's Children