| Term | History |
| 1 | Became a Engineer/Gunner at age 18 |
| 1 | Is now a Crewman |
| 1 | Vessel participates in a notable military engagement. |
| 1 | Attempt at commissioned failed. |
| 1 | Promoted to Engineer/Gunner rank 1 |
| 1 | Is now a Able Spacehand |
| 2 | Voluntarily left Engineer/Gunner |
| 2 | Became a Physician at age 22 |
| 2 | A disaster or war strikes. |
| 2 | Scarred. Fully recovered. Owe 2,500 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 | Continued as Physician at age 26 |
| 3 | Entangled in a bureaucratic or legal morass that distracts you from your work. |
| 4 | Continued as Physician at age 30 |
| 4 | Win a prestigious prize for your work. |
| 5 | Continued as Physician at age 34 |
| 5 | Lost eye or limb. Fully recovered. Owe 5,000 for medical bills. |
| 6 | Aging Crisis. Owe 10,000 for medical bills. |
| 6 | Retired at age 38 |
| 6 | A new romantic starts. Gain an Ally. |
| 7 | Aging Crisis. Owe 40,000 for medical bills. |
| 7 | A new romantic starts. Gain an Ally. |
| 8 | Aging Crisis. Owe 20,000 for medical bills. |
| 8 | A romantic relationship ends badly. Gain a Rival or Enemy. |
| 9 | Aging Crisis. Owe 20,000 for medical bills. |
| 9 | A romantic relationship deepens, possibly leading to marriage. Gain an Ally. |
| 10 | Aging Crisis. Owe 20,000 for medical bills. |
| 10 | A romantic relationship deepens, possibly leading to marriage. Gain an Ally. |
| 11 | Aging Crisis. Owe 30,000 for medical bills. |