Question: The Star Trek Roleplaying Game is a role-playing game (RPG) set in the "Star Trek" universe using a set of rules, established by what role-playing game system designed by Decipher, Inc.?

Context articles: Decipher, Inc.
CODA System
Star Trek: The Next Generation Role-playing Game
Star Trek Online
Star Trek Customizable Card Game
Star Wars: The Roleplaying Game
Star Trek: Adventure Gaming in the Final Frontier
Star Trek Roleplaying Game
Star Trek: The Animated Series
Star Trek Spaceflight Chronology

Decipher, Inc. is an American gaming company based in Norfolk, Virginia, US.
 They began with three puzzles called "Decipher" then moved on to party games and "Pente" sets, but since 1994 produced collectible card and role-playing games.
 Their longest-running offering is the "How to Host a Murder" Mystery series.
 Other popular works have included many different card games.
 Since 2002, Decipher has released two licensed role-playing games: "Star Trek RPG" and "The Lord of the Rings Roleplaying Game".
The CODA System is a role-playing game system designed by Decipher, Inc.
Star Trek: The Next Generation Role-playing Game is a role-playing game set in the fictional "Star Trek" universe, designed by Last Unicorn Games (LUG).
 Due to licensing issues, LUG did not release the game as a single core rulebook and setting supplements for the various series, but instead intended to release a corebook for every series.
 The "Star Trek" license was lost to Decipher before a "" rulebook could be released.
Star Trek Online is a massively multiplayer online role-playing game (MMORPG) developed by Cryptic Studios based on the "Star Trek" series created by Gene Roddenberry.
 The game is set in the 25th century, 30 years after the events of "".
 "Star Trek Online" is the first massively multiplayer online role-playing game within the "Star Trek" franchise and was released for the Microsoft Windows platform in February 2010.
 At launch, the game required a game purchase and a recurring monthly fee.
 In January 2012, it relaunched with a tier of free-to-play access available.
 After a public beta testing period, a completed version of the game was released for OS X in March 2014.
 Due to insurmountable technical issues with the platform, however, support for OS X ended in February 2016.
 By January 2014, the game had over 3.2 million accounts.
 It was later released on PlayStation 4 and Xbox One in September 2016.
The Star Trek Customizable Card Game is a collectible card game based on the Star Trek universe.
 The name is commonly abbreviated as STCCG or ST:CCG.
 It was first introduced in 1994 by "Decipher, Inc.", under the name Star Trek: The Next Generation Customizable Card Game.
 The game now has two distinct editions, though both forms of the game have many common elements.
Star Wars: The Roleplaying Game is a role-playing game set in the "Star Wars" universe, written and published by West End Games (WEG) between 1987 and 1999.
 The game system was slightly modified and rereleased in 2004 as "D6 Space", which used a generic space opera setting.
 An unrelated "Star Wars" RPG was published by Wizards of the Coast from 2000 to 2010.
 Since 2012 the official "Star Wars" role-playing game is another unrelated game, published by Fantasy Flight Games.
Star Trek: Adventure Gaming in the Final Frontier is a role-playing game set in the fictional "Star Trek" universe.
 The game was published and edited by Heritage Models from 1978 until Heritage Models dropped the "Star Trek" gaming license.
The Star Trek Roleplaying Game is a role-playing game (RPG) set in the "Star Trek" universe using the "CODA System" rules and first published by Decipher, Inc. in 2002.
 When Decipher acquired the rights to create the RPG, they also acquired most of the gaming studio from Last Unicorn Games.
 However, the Decipher game system is dissimilar to .
 Instead, the system is similar to Wizards of the Coast's "d20 System" but uses 2D6 to resolve actions.
Star Trek: The Animated Series (originally known simply as Star Trek but also known as "The Animated Adventures of Gene Roddenberry's Star Trek") is a 1973 animated science fiction television series set in the "Star Trek" universe following the events of "" of the 1960s.
 The animated series was aired under the name Star Trek, but it has become widely known under this longer name (or abbreviated as "ST: TAS" or "TAS") to differentiate it from the original live-action "."
 The success of the original live action series in syndication, and fan pressure for a "Star Trek" revival, led to "The Animated Series" from 1973–1974, as the source of new adventures of the "Enterprise" crew, the next being the 1979 live-action feature film "".
Star Trek Spaceflight Chronology is a 1980 book written and edited by Stan and Fred Goldstein, and illustrated by Rick Sternbach.
 At the time of its publication it was the official history of the "Star Trek" universe.
 The first season of "" used references and dates that indicated that the "Star Trek Spaceflight Chronology" was no longer being followed, and it was eventually replaced by "Star Trek Chronology" as the official history of the "Star Trek" universe.
 In 2006, Pocket Books published "Voyages of Imagination", which expanded "Star Trek Chronology" to include the events of all of the "Star Trek" novels.