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

The companion novels to the Ringworld series are set in the same "Known Space" universe and all written by Niven and Edward M. Lerner:

• 2007: Fleet of Worlds
• 2008: Juggler of Worlds
• 2009: Destroyer of Worlds
• 2010: Betrayer of Worlds
• 2012: Fate of Worlds