| Term | History |
| 1 | Became a Explorer at age 18 |
| 1 | Spend several years jumping from world to world in your scout ship. |
| 2 | Voluntarily left Explorer |
| 2 | Became a Engineer/Gunner at age 22 |
| 2 | Is now a Crewman |
| 2 | Commanding officer takes an interest in your career. |
| 2 | Attempt at commissioned failed. |
| 2 | Promoted to Engineer/Gunner rank 1 |
| 2 | Is now a Able Spacehand |
| 3 | Continued as Engineer/Gunner at age 26 |
| 3 | Vessel participates in a notable military engagement. |
| 3 | Commissioned in Navy/Engineer/Gunner |
| 3 | Is now a Ensign |
| 3 | Promoted to Engineer/Gunner officer rank 2 |
| 3 | Is now a Sublieutenant |
| 4 | Continued as Engineer/Gunner at age 30 |
| 4 | Lightly injured, no permanent damage. Fully recovered. |
| 5 | Became a Colonist at age 34 |
| 5 | A revolution, attack or other unusual event throws your life into chaos, forcing you to leave the planet. |
| 6 | Became a Scientist at age 38 |
| 6 | Refuse to join a cheat in some fashion. |
| 6 | Promoted to rank 1 |
| 7 | Continued as Scientist at age 42 |
| 7 | Entangled in a bureaucratic or legal morass that distracts you from your work. |
| 7 | Promoted to rank 2 |
| 8 | Continued as Scientist at age 46 |
| 8 | Make a breakthrough in your field. |
| 8 | Promoted to rank 3 |
| 9 | Aging Crisis. Owe 20,000 for medical bills. |
| 9 | Continued as Scientist at age 50 |
| 9 | Entangled in a bureaucratic or legal morass that distracts you from your work. |
| 9 | Promoted to rank 4 |
| 10 | Aging Crisis. Owe 40,000 for medical bills. |
| 10 | Continued as Scientist at age 54 |
| 10 | Win a prestigious prize for your work. |
| 10 | Promoted to rank 5 |
| 11 | Aging Crisis. Owe 10,000 for medical bills. |
| 11 | Continued as Scientist at age 58 |
| 11 | Refuse to join a cheat in some fashion. |
| 11 | Promoted to rank 6 |
| 12 | Aging Crisis. Owe 20,000 for medical bills. |
| 12 | Continued as Scientist at age 62 |
| 12 | Advanced training in a specialist field. |
| 12 | Promoted to rank 7 |
| 13 | Aging Crisis. Owe 60,000 for medical bills. |
| 13 | Continued as Scientist at age 66 |
| 13 | Win a prestigious prize for your work. |
| 13 | Forced to muster out. |
| 14 | Aging Crisis. Owe 40,000 for medical bills. |