Star Wars: Knights of the Old Republic II – The Sith Lords

The same rules, a harder question

The Sith Lords handed the series to Obsidian Entertainment — the studio formed from the remains of Black Isle, the team behind Planescape: Torment and the Infinity Engine games. They kept the Star Wars d20 ruleset and Odyssey engine of the first game intact, so mechanically this is the same D&D-3e-derived system: classes and prestige classes, feats, skills, saving throws, and paused d20 combat.

What changed was the writing. Obsidian used those familiar systems to tell a bleaker, more philosophically pointed story about the Force, influence over companions, and the consequences of being followed. Famously rushed to a holiday release and cut short, it was later largely restored by a long-running community Restored Content mod — itself a testament to how deeply players cared.

Like its predecessor, it carries no D&D license but runs on D&D’s rules in everything but name, which is what places it in this section.