on Ringworld. Ringworld: Revenge of the Patriarch was released in 1992 and Return to Ringworld in 1994. A third game, Ringworld: Within ARM's Reach, was also planned, but never completed. The video game franchise Halo, created by Bungie and now handled by 343 Industries, took inspiration from the book in the creation and development of its story around the eponymous rings, called Halos. These are physically similar to the Ringworld, however they are much smaller and do not encircle the star, instead orbiting stars or planets. The open source video game Endless Sky features an alien species that creates ringworlds. In 2017 Paradox Interactive added a DLC called "Utopia" to their game Stellaris, allowing the player to restore or build ringworlds. In 2021 Mobius Digital added a DLC called "Echoes of the Eye" to their game Outer Wilds, which allows the player to explore a hidden, abandoned ringworld and determine what happened to its inhabitants. On screen There have been many aborted attempts to adapt the novel to the screen. In 2001, Larry Niven reported that a movie deal had been signed and was in the early planning stages. In 2004, the Sci-Fi Channel reported that it was developing a Ringworld miniseries. The series never came to fruition. In 2013, it was again announced by the channel, now rebranded as Syfy, that a miniseries of the novel was in development. This proposed 4-hour miniseries was being written by Michael R. Perry and would have been a co-production between MGM Television and Universal Cable Productions. In 2017, Amazon announced that Ringworld was one of three science fiction series it was developing for its streaming service. MGM were again listed as a co-producer. OEL manga Tor/Seven Seas (same joint venture of Macmillan's Tor Books and Seven Seas Entertainment who also published the English-language translation of Afro Samurai) published a two-part original English-language manga adaptation of Ringworld, with the script written by Robert Mandell and the artwork by Sean Lam. Ringworld: The Graphic Novel, Part One, covering the events of the novel up to the sunflower attack on Speaker, was released on July 8, 2014. Part Two was released on November 10, 2015. In other works Terry Pratchett intended his 1981 novel Strata to be a "piss-take/homage/satire" of Ringworld. Niven took it in good humor and enjoyed the work. The plot of the first-person shooter Halo: Combat Evolved for the Xbox, Windows, and