Dark Forces saga
From Wookieepedia, the Star Wars wiki.
The Dark Forces saga, also known as Jedi Knight saga, was introduced with the game Star Wars: Dark Forces (1995) by Justin Chin. Due to the popularity of the game, and the general demand, a sequel was released, featuring lightsabers and Force powers: Dark Forces II: Jedi Knight (1997) and an expansion, Jedi Knight: Mysteries of the Sith (1998).
The two first games spun off the Dark Forces novellas based on the plot as well as the background history:
These works were the first video games (years before the Knights of the Old Republic series) that had new elements later referenced by subsequent Expanded Universe sources and retcons, transitioned afterwards to the wider EU corpus; bringing thus into existence several important and integral concepts in the Star Wars continuity and the Galactic history; such have been some Force powers, the dark troopers, the Battle of Ruusan, Prophets of the Dark Side and Dromund Kaas, the Reborn etc.
The Jedi Knight subtitle itself was renamed to a proper title, with the Dark Forces as its subtitle: Jedi Knight: Dark Forces II. Jedi Knight therefore spawned its own sequel, Jedi Knight II: Jedi Outcast (2002), and a spinoff, Star Wars: Jedi Knight: Jedi Academy (2004) where Kyle Katarn is an NPC character. A series of in-universe reports were posted on the LucasArts website building up to the release of Jedi Outcast, which provided some background. Known as the N.R.I. Reports, these added to the Dark Forces corpus.
Sometimes, the comics Sand Blasted and Equals and Opposites are considered parts of the Dark Forces saga since they feature characters from the games.
The documents, The Dark Forces Saga and Kyle Katarn's Tale released by Wizards of the Coast, have expanded more on the background of the stories and the history of characters.
