| Term | History |
| 1 | Became a Line/Crew at age 18 |
| 1 | Is now a Crewman |
| 1 | Vessel participates in a notable military engagement. |
| 1 | Promoted to Line/Crew rank 1 |
| 1 | Is now a Able Spacehand |
| 2 | Continued as Line/Crew at age 22 |
| 2 | Vessel participates in a notable military engagement. |
| 3 | Continued as Line/Crew at age 26 |
| 3 | Display heroism in battle, saving the whole ship. |
| 3 | Commissioned in Navy/Line/Crew |
| 3 | Is now a Ensign |
| 3 | Promoted to Line/Crew officer rank 2 |
| 3 | Is now a Sublieutenant |
| 4 | Continued as Line/Crew at age 30 |
| 4 | Betrayal. Convert an Ally into a Rival or Enemy. |
| 5 | Continued as Line/Crew at age 34 |
| 5 | Special assignment or duty on board ship. |
| 5 | Forced to muster out. |
| 6 | Became a Scientist at age 38 |
| 6 | Work leads to a considerable breakthrough. |
| 6 | Promoted to rank 1 |
| 7 | Continued as Scientist at age 42 |
| 7 | Advanced training in a specialist field. |
| 8 | Continued as Scientist at age 46 |
| 8 | Entangled in a bureaucratic or legal morass that distracts you from your work. |
| 8 | Promoted to rank 2 |
| 9 | Continued as Scientist at age 50 |
| 9 | Win a prestigious prize for your work. |
| 10 | Aging Crisis. Owe 60,000 for medical bills. |
| 10 | Continued as Scientist at age 54 |
| 10 | A disaster leaves several injured, and others blame you, forcing you to leave your career. Gain a Rival. |
| 10 | Lightly injured, no permanent damage. Fully recovered. |
| 11 | Aging Crisis. Owe 10,000 for medical bills. |
| 11 | Retired at age 58 |
| 11 | Find an Alien Artifact. |
| 12 | Aging Crisis. Owe 20,000 for medical bills. |
| 12 | A romantic relationship ends badly. Gain a Rival or Enemy. |
| 13 | Aging Crisis. Owe 40,000 for medical bills. |
| 13 | Accused of a crime |
| 14 | Aging Crisis. Owe 40,000 for medical bills. |
| 14 | Good fortune |
| 15 | Aging Crisis. Owe 10,000 for medical bills. |
| 15 | Moved to a new world. |
| 16 | Aging Crisis. Owe 50,000 for medical bills. |