* In the 1980s a role-playing game based on this setting was produced by Chaosium named The Ringworld Roleplaying Game.

The Ringworld science fiction role-playing game was published by Chaosium in 1984, using the Basic Role-Playing system for its rules and Larry Niven's Ringworld novels as a setting.

The game setting details are complete enough that some Ringworld fans not interested in role-playing buy the game just for the background material.

The Ringworld role-playing game is not a ' full ' science fiction RPG, like Traveller, including, for example, rules for starship construction, space combat, travel to different planets and systems, and so forth.

Only two publications were ever published, the Ringworld role-playing game box set itself, and the Ringworld Companion, both in 1984 by Chaosium.

# REDIRECT Ringworld ( role-playing game )

* Ringworld ( role-playing game )

Other science fiction authors have devised their own variants of Niven's Ringworld, notably Iain M. Banks ' Culture Orbitals, best described as miniature Ringworlds, and the ring-shaped Halo structure of the video game Halo.

A third game, Ringworld: Within ARM's Reach, was also planned, but never completed.

Similarities to Ringworld have been noted in the game, and Niven was asked ( but declined ) to write the first novel based on the series.

The game is intended to be set on the Ringworld itself, an enormous single world discovered at the far reaches of Known Space, a ring around a sun at approximately the orbit of the Earth.

This Ringworld focus has been a criticism of the game.

Instead, the game and rules focused on parties of characters exploring the Ringworld itself, and, despite its vast size ( with a surface area larger than that of all of Known Space's inhabited planets put together ), many who bought the game felt limited by this one world setting.

The Ringworld series is set in the Known Space universe.

The stories that constitute the Known Space series were originally conceived as two separate series: the Belter stories, featuring solar-system colonization and slower-than-light travel with fusion-powered and Bussard ramjet ships, and the Neutron Star / Ringworld series of stories, set much further into the future, which feature faster-than-light ships using " hyperdrive ".

Ringworld is a 1970 science fiction novel by Larry Niven, set in his Known Space universe and considered a classic of science fiction literature.

The team now has to set out to find a way to get back into space, as well as fulfilling their original mission – learning more about the Ringworld.

The Pak also appear in several of Niven's later novels, notably those set in the Ringworld.

Ringworld's Children is a 2004 science fiction novel by Larry Niven, the fourth in the Ringworld series set in the Known Space universe.

In the course of the novel, Louis and Chmeee set forth on an exploration of the Ringworld in order to learn where the creators of the Ringworld may have built a control or repair system.

A percentile skill-based system, BRP was used as the basis for most of the games published by Chaosium, including Stormbringer, Worlds of Wonder, Call of Cthulhu, Superworld, Ringworld, Elfquest, Hawkmoon, Elric !, and Nephilim.

When it was pointed out to Niven that the Ringworld was dynamically unstable, in that once the center of rotation drifted away from the central sun, gravity would pull the ring into contact with the star, he used this as a plot element in the sequel novel, The Ringworld Engineers.

In Ringworld it is revealed that this was in part due to clandestine meddling by the Pierson's Puppeteers.

Her spaceship was stranded on the Ringworld when the landing mechanism failed.

One major problem was that the Ringworld, being a rigid structure, was not actually in orbit around the star it encircled and would eventually drift, resulting in the entire structure colliding with its sun and disintegrating.

In 2004, the SyFy Channel reported that it was developing a Ringworld miniseries.

* Tsunami Games released two adventure games based on Ringworld ; Ringworld: Revenge of the Patriarch was released in 1992 and Return to Ringworld in 1994.

A hull material that gets stronger with pressure in the film The Core was nicknamed unobtainium, but the concept under different names can be seen in the anti-gravity material cavorite and the super-strong material scrith from Larry Niven's novel Ringworld, which requires a tensile strength on the order of the forces binding an atomic nucleus together.

Her luck was highly selective, bending probability so that the outcome most beneficial to her or her descendants would come to pass, without regard to its effects on those around her — which was contrary to the interest of the rest of the Ringworld expedition on more than one occasion.

In The Ringworld Engineers, the characters find evidence that the Ringworld was built by Pak Protectors ( confirmed by the statements of a character in Ringworld's Children who claims to be one of the original builders ) and populated by Pak breeders.

For example a group at MIT concluded that the planet Mesklin in Hal Clement's 1953 novel Mission of Gravity would have had a sharp edge at the equator, and a Florida high-school class calculated that in Larry Niven's 1970 novel Ringworld the topsoil would have slid into the seas in a few thousand years.

#* Guide to Larry Niven's Ringworld ( 1994, with Kevin Stein )

* The Ringworld Role-Playing Game: A Re-appraisal From Other Reviews on " Known Space: The Future Worlds of Larry Niven " fan site

* Ringworld — Larry Niven

* In the Ringworld series by Larry Niven, a ring a million miles wide is built and spun ( for gravity ) around a star roughly one astronomical unit away.

* Hugo Award: Larry Niven, Ringworld

* Larry Niven – Ringworld

* Nebula Award: Larry Niven, Ringworld

It has been called a " preconsideration " of Discworld, though the plot and characters are modelled on ( or parodies of ) the novel Ringworld by Larry Niven.

According to Don D ' Ammassa, both this and Pratchett's 1981 sci-fi novel Strata are spoofing parts of Larry Niven's Ringworld.

* In 2855 four explorers ( two humans and two aliens ) are chosen to explore Larry Niven's mysterious Ringworld.

In Larry Niven's Ringworld novels, rishathra is " sexual practice outside one's own species but within the intelligent hominoids.

* In Larry Niven's Ringworld series, revealed in The Ringworld Throne, the Ghoul species use heliographs for their vast communication network across the Ringworld.

The Pak Protectors dwindled in numbers until they were no longer able to maintain the genetic purity of the breeder forms and the breeders eventually evolved into all the other hominids of the Ringworld that one sees in Larry Niven's novels.

A pentagon al rosette as described in Larry Niven's novel Ringworld.

In Larry Niven's novel Ringworld, the Puppeteers ' " Fleet of Worlds " is arranged in such a configuration ( 5 planets spaced at the points of a pentagon ) which Niven calls a " Kemplerer rosette "; this ( possibly intentional ) misspelling ( and misuse ) is one possible source of this confusion.