| 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 | Placed in the frozen watch (cryogenically stored on board ship) and revived improperly. |
| 3 | Became a Scientist at age 26 |
| 3 | Cheated in some fashion, advancing your career and research by stealing another’s work, using an alien device, taking a shortcut and so forth. |
| 3 | Gain an Enemy |
| 3 | Promoted to rank 1 |
| 4 | Continued as Scientist at age 30 |
| 4 | Advanced training in a specialist field. |
| 4 | Promoted to rank 2 |
| 5 | Continued as Scientist at age 34 |
| 5 | Entangled in a bureaucratic or legal morass that distracts you from your work. |
| 6 | Voluntarily left Scientist |
| 6 | Returned to Engineer/Gunner at age 38 |
| 6 | Vessel participates in a notable military engagement. |
| 6 | Promoted to Engineer/Gunner rank 2 |
| 6 | Is now a Petty Officer, 3rd class |
| 7 | Continued as Engineer/Gunner at age 42 |
| 7 | Advanced training in a specialist field |
| 7 | Promoted to Engineer/Gunner rank 3 |
| 7 | Is now a Petty Officer, 2nd class |
| 8 | Voluntarily left Engineer/Gunner |
| 8 | Switched to Field Researcher at age 46 |
| 8 | Good fortune |
| 8 | Promoted to rank 1 |
| 9 | Continued as Field Researcher at age 50 |
| 9 | Nearly killed. Fully recovered. Owe 6,250 for medical bills. |