| Term | History |
|---|
| 1 | Became a Engineer/Gunner at age 18 |
| 1 | Is now a Crewman |
| 1 | A new romantic starts. Gain an Ally. |
| 1 | Forced to continue current assignment |
| 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 | Special assignment or duty on board ship. |
| 3 | Promoted to Engineer/Gunner rank 3 |
| 3 | Is now a Petty Officer, 2nd class |
| 4 | Continued as Engineer/Gunner at age 30 |
| 4 | Vessel participates in a notable military engagement. |
| 4 | Promoted to Engineer/Gunner rank 4 |
| 4 | Is now a Petty Officer, 1st class |
| 5 | Continued as Engineer/Gunner at age 34 |
| 5 | Vessel participates in a notable military engagement. |
| 5 | Forced to continue current assignment |
| 5 | Promoted to Engineer/Gunner rank 5 |
| 5 | Is now a Chief Petty Officer |
| 6 | Continued as Engineer/Gunner at age 38 |
| 6 | Advanced training in a specialist field |
| 6 | Forced to muster out. |
| 7 | Became a Field Researcher at age 42 |
| 7 | Agreed to perform research that goes against your conscience. Gain 3 Enemies. |
| 7 | Promoted to rank 1 |
| 8 | Continued as Field Researcher at age 46 |
| 8 | Make a breakthrough in your field. |
| 8 | Promoted to rank 2 |
| 9 | Continued as Field Researcher at age 50 |
| 9 | Agreed to perform research that goes against your conscience. Gain 1 Enemies. |
| 9 | Promoted to rank 3 |
| 10 | Aging Crisis. Owe 30,000 for medical bills. |