| Term | History |
| 1 | Became a Physician at age 18 |
| 1 | Win a prestigious prize for your work. |
| 2 | Continued as Physician at age 22 |
| 2 | Refuse to join a cheat in some fashion. |
| 2 | Promoted to rank 1 |
| 3 | Continued as 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 openly and gain an Enemy. |
| 3 | Promoted to rank 2 |
| 4 | Continued as Physician at age 30 |
| 4 | Entangled in a bureaucratic or legal morass that distracts you from your work. |
| 4 | Forced to muster out. |
| 5 | Became a Cavalry at age 34 |
| 5 | Is now a Private |
| 5 | Assigned to an urbanised planet torn by war. |
| 5 | Promoted to Cavalry rank 1 |
| 5 | Is now a Lance Corporal |
| 6 | Continued as Cavalry at age 38 |
| 6 | Assigned to a planet with a hostile or wild environment. |
| 7 | Voluntarily left Cavalry |
| 7 | Became a Engineer/Gunner at age 42 |
| 7 | Is now a Crewman |
| 7 | You foil an attempted crime on board, such as mutiny, sabotage, smuggling or conspiracy. Gain an Enemy. |
| 7 | Attempt at commissioned failed. |
| 8 | Continued as Engineer/Gunner at age 46 |
| 8 | Gained a contact. |
| 8 | Promoted to Engineer/Gunner rank 1 |
| 8 | Is now a Able Spacehand |
| 9 | Continued as Engineer/Gunner at age 50 |
| 9 | Vessel participates in a notable military engagement. |
| 9 | Promoted to Engineer/Gunner rank 2 |
| 9 | Is now a Petty Officer, 3rd class |
| 10 | Aging Crisis. Owe 50,000 for medical bills. |
| 10 | Continued as Engineer/Gunner at age 54 |
| 10 | Gained a contact. |
| 10 | Promoted to Engineer/Gunner rank 3 |
| 10 | Is now a Petty Officer, 2nd class |
| 11 | Continued as Engineer/Gunner at age 58 |
| 11 | Vessel participates in a notable military engagement. |
| 11 | Promoted to Engineer/Gunner rank 4 |
| 11 | Is now a Petty Officer, 1st class |
| 12 | Aging Crisis. Owe 30,000 for medical bills. |