| Term | History |
| 1 | Became a Scientist at age 18 |
| 1 | Advanced training in a specialist field. |
| 2 | Continued as Scientist at age 22 |
| 2 | A disaster or war strikes. |
| 2 | Severely injured. Fully recovered. Owe 5,000 for medical bills. |
| 2 | The planetary government interferes with your research for political or religious reasons. You continue working openly and gain an Enemy. |
| 3 | Voluntarily left Scientist |
| 3 | Became a Engineer/Gunner at age 26 |
| 3 | Is now a Crewman |
| 3 | Vessel participates in a notable military engagement. |
| 3 | Promoted to Engineer/Gunner rank 1 |
| 3 | Is now a Able Spacehand |
| 4 | Continued as Engineer/Gunner at age 30 |
| 4 | You foil an attempted crime on board, such as mutiny, sabotage, smuggling or conspiracy. Gain an Enemy. |
| 4 | Promoted to Engineer/Gunner rank 2 |
| 4 | Is now a Petty Officer, 3rd class |
| 5 | Continued as Engineer/Gunner at age 34 |
| 5 | Scarred. Fully recovered. Owe 2,500 for medical bills. |
| 6 | Switched to Line/Crew at age 38 |
| 6 | Vessel participates in a notable military engagement. |
| 6 | Promoted to Line/Crew rank 3 |
| 6 | Is now a Petty Officer, 2nd class |
| 7 | Continued as Line/Crew at age 42 |
| 7 | You foil an attempted crime on board, such as mutiny, sabotage, smuggling or conspiracy. Gain an Enemy. |
| 7 | Promoted to Line/Crew rank 4 |
| 7 | Is now a Petty Officer, 1st class |
| 8 | Continued as Line/Crew at age 46 |
| 8 | You join a gambling circle on board. |
| 8 | Promoted to Line/Crew rank 5 |
| 8 | Is now a Chief Petty Officer |
| 9 | Aging Crisis. Owe 30,000 for medical bills. |