Ringworld

Ringworld is a science fiction novel by Larry Niven, published in 1970. Winner of the Hugo, Locus, and Nebula Awards for best novel, Ringworld introduced or popularized many modern concepts in science fiction, such as the ‛big dumb object’ or megastructure.

The novel begins in the year 2850, and Louis Gridley Wu is celebrating his 200th birthday by teleporting westward in order to extend the duration of the day. Wu is in perfect physical condition as the result of his use of a longevity drug, but he is experiencing existential boredom. He contemplates taking a vacation in order to get away from human society for a while. He encounters an alien, a Pierson’s Puppeteer named Nessus, who asks him to join a crew on a space mission but does not give Wu any details. Intrigued, Wu accepts the job. When he arrives to board the spaceship, he finds two other crew members: Speaker-to-Animals, a member of another alien race called the Kzin, and Teela Brown.

They are brought to the world of the Puppeteers. They learn that the purpose of their mission is to explore Ringworld, an enormous abandoned megastructure, to determine if it poses any threat to settled space. The Ringworld is huge; a million miles wide and large enough in diameter to encircle a star similar to earth’s sun. The Ringworld also rotates to simulate gravity and possesses an atmosphere capable of supporting life. The crew is offered the spaceship they will use to travel there as payment; as the technology is much more advanced than what humans or Kzin are capable of, it’s value is priceless.



They name the ship The Lying Bastard and travel to the Ringworld. As they approach, they attempt to contact anyone on board the megastructure, but receive no response. The ship is then disabled by Ringworld’s defenses and damaged, eventually crash-landing on the surface of Ringworld near a formation called the Fist of God. The ship is still capable of interstellar spaceflight, but cannot launch off of Ringworld without repairs.

The crew mount personal vehicles called flycycles and make for the edge of the ring, a trip that will take months. After traveling for some time, Teela begins to suffer from a temporary psychosis known as Plateau Trance, and they are forced to stop in what appears to be the ruins of a city built on the surface of Ringworld. A group of primitive humanoids come upon the crew and begin to worship them as gods, believing them to be the engineers who designed Ringworld. However, the crew’s use of technology in ways that offend the humanoids leads to an attack, and they must flee on the flycycles.

On this leg of the trip, Nessus begins talking about the Kzin race in an offensive way, stating that they have been purposely bred for passivity by the Puppeteers, and Speaker becomes enraged and chases Nessus away. Nessus remains in sight, however, following the crew. The crew then discovers a map of Ringworld and some visual evidence of the civilization that once inhabited the structure.



They are overtaken by a violent storm, and Teela is lost. Wu and Speaker search for her when the storm passes, and are captured by an automated trap and transported to what was once a mobile police station where they are imprisoned until Nessus arrives and rescues them. Exploring the station, they meet Halrloprillalar ‛Prill’ Hotrufan. She tells them that she was part of a crew of traders who dealt with the Ringworlders; when her ship came to Ringworld the last time, however, the entire civilization had collapsed, and their entry was faulty and many of the crew died or were driven insane. Wu speculates that her crew introduced a destructive breed of mold to Ringworld that consumed the superconductors that the Ringworld civilization depended on.

Teela arrives at the station, accompanied by Seeker, a native of Ringworld she has taken as a lover. Wu begins planning on how they can all get home, but Teela announces she has decided to stay on Ringworld with Seeker.

They travel in the station back to their crashed ship, dragging a length of wire behind them, then use the wire to attach the ship to the station. Wu steers the station up to the top of the Fist of God, noting that the formation did not appear on the map of Ringworld they glimpsed; he speculates it is the result of an impact on the opposite side of the ring that deformed it—and creating a hole in the surface of the Ringworld. Wu steers the station into the hole, dragging The Lying Bastard behind it and using Ringworld’s momentum as it spins to launch the ship into space, where its hyperdrive can be engaged to take them home. As they travel, Wu and Speaker discuss returning to Ringworld at a later date to explore it further.