| Term | History |
| 1 | Became a Engineer/Gunner at age 18 |
| 1 | Is now a Crewman |
| 1 | Advanced training in a specialist field |
| 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 | Promoted to Engineer/Gunner rank 2 |
| 2 | Is now a Petty Officer, 3rd class |
| 3 | Continued as Engineer/Gunner at age 26 |
| 3 | A romantic relationship ends badly. Gain a Rival or Enemy. |
| 3 | Promoted to Engineer/Gunner rank 3 |
| 3 | Is now a Petty Officer, 2nd class |
| 4 | Continued as Engineer/Gunner at age 30 |
| 4 | Special assignment or duty on board ship. |
| 4 | Promoted to Engineer/Gunner rank 4 |
| 4 | Is now a Petty Officer, 1st class |
| 5 | Continued as Engineer/Gunner at age 34 |
| 5 | You foil an attempted crime on board, such as mutiny, sabotage, smuggling or conspiracy. Gain an Enemy. |
| 5 | Forced to muster out. |
| 6 | Became a Scientist at age 38 |
| 6 | Assigned to work on a secret project for a patron or organisation. |
| 6 | Promoted to rank 1 |
| 7 | Continued as Scientist at age 42 |
| 7 | Win a prestigious prize for your work. |
| 7 | Forced to muster out. |
| 8 | Switched to Field Researcher at age 46 |
| 8 | A disaster leaves several injured, and others blame you, forcing you to leave your career. Gain a Rival. |
| 8 | Nearly killed. Owe 10,000 for medical bills. |