| Term | History |
| 1 | Became a Line/Crew at age 18 |
| 1 | Is now a Crewman |
| 1 | Vessel participates in a diplomatic mission. |
| 1 | Promoted to Line/Crew rank 1 |
| 1 | Is now a Able Spacehand |
| 2 | Continued as Line/Crew at age 22 |
| 2 | Refuse to abuse your position for profit |
| 2 | Promoted to Line/Crew rank 2 |
| 2 | Is now a Petty Officer, 3rd class |
| 3 | Continued as Line/Crew at age 26 |
| 3 | Vessel participates in a diplomatic mission. |
| 3 | Forced to continue current assignment |
| 3 | Promoted to Line/Crew rank 3 |
| 3 | Is now a Petty Officer, 2nd class |
| 4 | Continued as Line/Crew at age 30 |
| 4 | Display heroism in battle, saving the whole ship. |
| 4 | Commissioned in Navy/Line/Crew |
| 4 | Is now a Ensign |
| 4 | Promoted to Line/Crew officer rank 2 |
| 4 | Is now a Sublieutenant |
| 5 | Continued as Line/Crew at age 34 |
| 5 | Commanding officer takes an interest in your career. |
| 5 | Promoted to Line/Crew officer rank 3 |
| 5 | Is now a Lieutenant |
| 6 | Continued as Line/Crew at age 38 |
| 6 | Advanced training in a specialist field |
| 6 | Promoted to Line/Crew officer rank 4 |
| 6 | Is now a Commander |
| 7 | Voluntarily left Line/Crew |
| 7 | Became a Scientist at age 42 |
| 7 | Advanced training in a specialist field. |
| 7 | Promoted to rank 1 |
| 8 | Aging Crisis. Owe 20,000 for medical bills. |
| 8 | Continued as Scientist at age 46 |
| 8 | Make a breakthrough in your field. |
| 8 | Promoted to rank 2 |
| 9 | Aging Crisis. Owe 40,000 for medical bills. |
| 9 | Continued as Scientist at age 50 |
| 9 | Caught cheating in some fashion, advancing your career and research by stealing another’s work, using an alien device, taking a shortcut and so forth. |
| 9 | A disaster or war strikes. |
| 9 | Scarred. Fully recovered. Owe 2,500 for medical bills. |
| 9 | The planetary government interferes with your research for political or religious reasons. You continue working openly and gain an Enemy. |
| 9 | Gain an Enemy |
| 10 | Aging Crisis. Owe 40,000 for medical bills. |
| 10 | Continued as Scientist at age 54 |
| 10 | Refuse to join a cheat in some fashion. |
| 10 | Promoted to rank 3 |
| 11 | Aging Crisis. Owe 60,000 for medical bills. |
| 11 | Continued as Scientist at age 58 |
| 11 | Cheated in some fashion, advancing your career and research by stealing another’s work, using an alien device, taking a shortcut and so forth. |
| 11 | Gain an Enemy |
| 11 | Promoted to rank 4 |
| 12 | Aging Crisis. Owe 30,000 for medical bills. |
| 12 | Continued as Scientist at age 62 |
| 12 | Moved to a new world. |
| 12 | Promoted to rank 5 |
| 13 | Aging Crisis. Owe 40,000 for medical bills. |
| 13 | Continued as Scientist at age 66 |
| 13 | Make a breakthrough in your field. |
| 13 | Promoted to rank 6 |
| 14 | Aging Crisis. Owe 50,000 for medical bills. |
| 14 | Continued as Scientist at age 70 |
| 14 | Refuse to join a cheat in some fashion. |
| 14 | Forced to muster out. |
| 15 | Aging Crisis. Owe 40,000 for medical bills. |