| Term | History |
| 1 | Became a Engineer/Gunner at age 18 |
| 1 | Is now a Crewman |
| 1 | You foil an attempted crime on board, such as mutiny, sabotage, smuggling or conspiracy. Gain an Enemy. |
| 1 | Promoted to Engineer/Gunner rank 1 |
| 1 | Is now a Able Spacehand |
| 2 | Continued as Engineer/Gunner at age 22 |
| 2 | Advanced training in a specialist field |
| 2 | Forced to muster out. |
| 3 | Became a Physician at age 26 |
| 3 | A disaster or war strikes. |
| 3 | Lost eye or limb. Fully recovered. Owe 5,000 for medical bills. |
| 3 | The planetary government interferes with your research for political or religious reasons. You continue working secretely. |
| 4 | Continued as Physician at age 30 |
| 4 | A disaster leaves several injured, and others blame you, forcing you to leave your career. Gain a Rival. |
| 4 | Severely injured. Fully recovered. Owe 5,000 for medical bills. |
| 5 | Switched to Line/Crew at age 34 |
| 5 | A romantic relationship ends badly. Gain a Rival or Enemy. |
| 5 | Promoted to Line/Crew rank 2 |
| 5 | Is now a Petty Officer, 3rd class |
| 6 | Continued as Line/Crew at age 38 |
| 6 | Abuse your position for profit |
| 7 | Continued as Line/Crew at age 42 |
| 7 | Scarred. Fully recovered. Owe 2,500 for medical bills. |
| 8 | Switched to Scientist at age 46 |
| 8 | Entangled in a bureaucratic or legal morass that distracts you from your work. |
| 9 | Continued as Scientist at age 50 |
| 9 | Make a breakthrough in your field. |
| 9 | Promoted to rank 1 |