- "They are a machine, created by the Sith Lord Ieldis to turn subject peoples into strong armies. A machine that has never been turned off, centuries after Ieldis turned to dust."
- ―Ralthar Sitan
Ieldis was a Sith Lord of the Old Sith Empire who was responsible for the creation of the Crucible, a massive organization that created standing armies from the refugees created during war. During his life, he created a Sith sword known as the Sword of Ieldis as well as a helm known as the Helm of Ieldis. Ieldis eventually died, but even after his death, the Crucible lived on.
- Knights of the Old Republic 29: Exalted, Part 1 (First mentioned)
- Knights of the Old Republic 35: Vindication, Part 4 (Mentioned only)
- Knights of the Old Republic 46: Destroyer, Part 2 (Mentioned only)
- Star Wars: The Old Republic (Mentioned only)
- Knight Errant: Aflame 3 (Mentioned only)
- Knight Errant (Mentioned only)
- Knight Errant: Escape 1 (Mentioned only)
- Knight Errant: Escape 4 (Mentioned only)