| Term | History |
|---|
| 1 | Became a Engineer/Gunner at age 18 |
| 1 | Is now a Crewman |
| 1 | Vessel participates in a notable military engagement. |
| 1 | Promoted to Engineer/Gunner rank 1 |
| 1 | Is now a Able Spacehand |
| 2 | Continued as Engineer/Gunner at age 22 |
| 2 | Special assignment or duty on board ship. |
| 2 | Promoted to Engineer/Gunner rank 2 |
| 2 | Is now a Petty Officer, 3rd class |
| 3 | Continued as Engineer/Gunner at age 26 |
| 3 | Vessel participates in a diplomatic mission. |
| 3 | Promoted to Engineer/Gunner rank 3 |
| 3 | Is now a Petty Officer, 2nd class |
| 4 | Continued as Engineer/Gunner at age 30 |
| 4 | Special assignment or duty on board ship. |
| 4 | Attempt at commissioned failed. |
| 4 | Promoted to Engineer/Gunner rank 4 |
| 4 | Is now a Petty Officer, 1st class |
| 5 | Voluntarily left Engineer/Gunner |
| 5 | Switched to Line/Crew at age 34 |
| 5 | Moved to a new world. |
| 5 | Promoted to Line/Crew rank 5 |
| 5 | Is now a Chief Petty Officer |
| 6 | Continued as Line/Crew at age 38 |
| 6 | You are falsed accused for an accident that causes the death of several crew members. Gain the officer who blamed you as an Enemy. |
| 7 | Became a Field Researcher at age 42 |
| 7 | Refuse to join a cheat in some fashion. |
| 7 | Promoted to rank 1 |
| 8 | Continued as Field Researcher at age 46 |
| 8 | A rival researcher blackens your name or steals your research. Gain a Rival. |
| 8 | Promoted to rank 2 |
| 9 | Continued as Field Researcher at age 50 |
| 9 | Refuse to join a cheat in some fashion. |
| 9 | Promoted to rank 3 |
| 10 | Continued as Field Researcher at age 54 |
| 10 | Your work is sabotaged by unknown parties. You start again from scratch. |
| 11 | Continued as Field Researcher at age 58 |
| 11 | Make a breakthrough in your field. |
| 11 | Promoted to rank 4 |
| 12 | Continued as Field Researcher at age 62 |
| 12 | An expedition or voyage goes wrong, leaving you stranded in the wilderness. |
| 13 | Aging Crisis. Owe 10,000 for medical bills. |
| 13 | Retired at age 66 |
| 13 | Moved to a new world. |
| 14 | Aging Crisis. Owe 60,000 for medical bills. |
| 14 | Good fortune |
| 15 | Aging Crisis. Owe 30,000 for medical bills. |
| 15 | Gained a contact. |
| 16 | Aging Crisis. Owe 50,000 for medical bills. |