| Term | History |
| 1 | Became a Scientist at age 18 |
| 1 | Advanced training in a specialist field. |
| 1 | Promoted to rank 1 |
| 2 | Continued as Scientist at age 22 |
| 2 | Win a prestigious prize for your work. |
| 2 | Promoted to rank 2 |
| 3 | Continued as Scientist at age 26 |
| 3 | Advanced training in a specialist field. |
| 4 | Continued as Scientist at age 30 |
| 4 | Assigned to work on a secret project for a patron or organisation. |
| 5 | Voluntarily left Scientist |
| 5 | Became a Corporate at age 34 |
| 5 | Refused to co-operate with investigation by the planetary authorities. Gain an Ally |
| 6 | Became a Engineer/Gunner at age 38 |
| 6 | Is now a Crewman |
| 6 | Spend time with an alien race. Gain a contact. |
| 6 | Promoted to Engineer/Gunner rank 1 |
| 6 | Is now a Able Spacehand |
| 7 | Continued as Engineer/Gunner at age 42 |
| 7 | Special assignment or duty on board ship. |
| 7 | Promoted to Engineer/Gunner rank 2 |
| 7 | Is now a Petty Officer, 3rd class |
| 8 | Continued as Engineer/Gunner at age 46 |
| 8 | Advanced training in a specialist field |
| 9 | Voluntarily left Engineer/Gunner |
| 9 | Switched to Line/Crew at age 50 |
| 9 | Vessel participates in a notable military engagement. |
| 9 | Promoted to Line/Crew rank 3 |
| 9 | Is now a Petty Officer, 2nd class |
| 10 | Continued as Line/Crew at age 54 |
| 10 | A new romantic starts. Gain an Ally. |
| 10 | Promoted to Line/Crew rank 4 |
| 10 | Is now a Petty Officer, 1st class |
| 11 | Continued as Line/Crew at age 58 |
| 11 | Display heroism in battle, saving the whole ship. |
| 11 | Commissioned in Navy/Line/Crew |
| 11 | Is now a Ensign |
| 11 | Promoted to Line/Crew officer rank 2 |
| 11 | Is now a Sublieutenant |