It ignored all mention of the Skywalker family and its generation spanning stories. Knights of the Old Republic was one of the first Star Wars stories of its kind. Yet, there was no connection to the prequel trilogy or the original triloy, besides the Jedi, Sith, and a battle of good versus evil were all involved.
The game came from then relatively obscure game studio, BioWare. The game was developed and released on the original Xbox while the prequel trilogy was in theaters, between Attack of the Clones and Revenge of the Sith. Knights of the Old Republic, often abbreviated as KOTOR, came out an interesting time in Star Wars history. The Star Wars franchise isn't churning out as many games as movies nowadays, but that could just be because perfection has already been reached with 2003's Knights of the Old Republic.
