Star Wars: Knights of the Old Republic II - The Sith Lords game-breaking bug makes completion impossible
It's treason, then...
Plenty of games suffer from bugs that cause minor headaches and considerable issues, but a handful of titles include issues so huge that they prevent you from playing the game itself. Unfortunately, that last situation is very much the case with Star Wars: Knights of the Old Republic II - The Sith Lords.
Publisher Aspyr has confirmed via Twitter that Star Wars: KotOR has a bug that prevents you from completing the game. As things stand now, the game crashes following the Basilisk Crash cutscene when landing on Onderon. Aspyr is very well aware of the bug, and is working on a fix right now.
Sadly, the team doesn’t have an estimate on when this bug will be patched up. As you have probably surmised, that means there’s no way to finish the game right now.