| Term | History |
| 1 | Became a Explorer at age 18 |
| 1 | Moved to a new world. |
| 1 | Promoted to rank 1 |
| 1 | Is now a Scout |
| 2 | Voluntarily left Explorer |
| 2 | Became a Physician at age 22 |
| 2 | Make a breakthrough in your field. |
| 3 | Continued as Physician at age 26 |
| 3 | Work for an eccentric but brilliant mentor, who becomes an Ally. |
| 3 | Promoted to rank 1 |
| 4 | Continued as Physician at age 30 |
| 4 | Win a prestigious prize for your work. |
| 4 | Promoted to rank 2 |
| 5 | Continued as Physician at age 34 |
| 5 | Make a breakthrough in your field. |
| 5 | Promoted to rank 3 |
| 6 | Continued as Physician at age 38 |
| 6 | Work leads to a considerable breakthrough. |
| 6 | Promoted to rank 4 |
| 7 | Continued as Physician at age 42 |
| 7 | Advanced training in a specialist field. |
| 7 | Promoted to rank 5 |
| 8 | Continued as Physician at age 46 |
| 8 | 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. |
| 8 | A disaster leaves several injured, and others blame you, forcing you to leave your career. Gain a Rival. |
| 8 | Injured. Fully recovered. Owe 1,250 for medical bills. |
| 8 | Gain an Enemy |
| 8 | Promoted to rank 6 |
| 9 | Continued as Physician at age 50 |
| 9 | Make a breakthrough in your field. |
| 9 | Forced to muster out. |
| 10 | Became a Engineer/Gunner at age 54 |
| 10 | Is now a Crewman |
| 10 | Injured. Fully recovered. |
| 10 | Commissioned in Navy/Engineer/Gunner |
| 10 | Is now a Ensign |
| 11 | Aging Crisis. Owe 50,000 for medical bills. |
| 11 | Continued as Engineer/Gunner at age 58 |
| 11 | Special assignment or duty on board ship. |
| 12 | Aging Crisis. Owe 60,000 for medical bills. |