| 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 | Voluntarily left Engineer/Gunner |
| 2 | Became a Scientist at age 22 |
| 2 | Refused to perform research that goes against your conscience. |
| 2 | Promoted to rank 1 |
| 3 | Continued as Scientist at age 26 |
| 3 | Win a prestigious prize for your work. |
| 3 | Promoted to rank 2 |
| 4 | Continued as Scientist at age 30 |
| 4 | Refuse to join a cheat in some fashion. |
| 5 | Continued as Scientist at age 34 |
| 5 | Entangled in a bureaucratic or legal morass that distracts you from your work. |
| 5 | Promoted to rank 3 |
| 6 | Voluntarily left Scientist |
| 6 | Became a Wanderer at age 38 |
| 6 | You do not know what happened to you. There is a gap in your memory. |
| 7 | Switched to Field Researcher at age 42 |
| 7 | A romantic relationship deepens, possibly leading to marriage. Gain an Ally. |
| 8 | Continued as Field Researcher at age 46 |
| 8 | Advanced training in a specialist field. |
| 8 | Promoted to rank 1 |
| 9 | Continued as Field Researcher at age 50 |
| 9 | Good fortune |
| 9 | Promoted to rank 2 |
| 10 | Aging Crisis. Owe 40,000 for medical bills. |
| 10 | Continued as Field Researcher at age 54 |
| 10 | Nearly killed. |
| 11 | Aging Crisis. Owe 60,000 for medical bills. |
| 11 | Retired at age 58 |
| 11 | Gained a contact. |
| 12 | Aging Crisis. Owe 60,000 for medical bills. |
| 12 | Betrayal. Convert an Ally into a Rival or Enemy. |
| 13 | Aging Crisis. Owe 60,000 for medical bills. |
| 13 | A new romantic starts. Gain an Ally. |
| 14 | Aging Crisis. Owe 10,000 for medical bills. |
| 14 | Accused of a crime |
| 15 | Aging Crisis. Owe 50,000 for medical bills. |