"Star Wars Jedi Knight: Dark Forces II (abbreviated to Jedi Knight and Dark Forces II) is a first person shooter computer game. It was developed and published by LucasArts and released on October 9, 1997. It was made available on Steam on September 16, 2009. It is based on the Star Wars franchise and is a sequel to Star Wars: Dark Forces. Jedi Knight was received very well by critics, obtaining an 87% aggregate score on Game Rankings and 91% on Metacritic.
The storyline in Jedi Knight follows Kyle Katarn, the protagonist of Dark Forces. Katarn's father has been murdered by a Dark Jedi over the location of The Valley of the Jedi. Katarn follows the Dark Jedi to the valley to confront his father's killers.
Jedi Knight adds some technical and gameplay improvements over its predecessor. It uses a more powerful game engine that supports 3D acceleration using Direct3D 5.0. Jedi Knight also includes a multiplayer mode that allows players to compete over the internet or a local area network. On January 31, 1998, Star Wars Jedi Knight: Mysteries of the Sith was released as an expansion to Jedi Knight. This was followed in 2002 by Star Wars Jedi Knight II: Jedi Outcast."
Source: Wikipedia, "Star_Wars_Jedi_Knight:_Dark_Forces_II," available under the CC-BY-SA License.