| 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 | Vessel participates in a diplomatic mission. |
| 2 | Gain a contact. |
| 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 notable military engagement. |
| 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 | Promoted to Engineer/Gunner rank 4 |
| 4 | Is now a Petty Officer, 1st class |
| 5 | Continued as Engineer/Gunner at age 34 |
| 5 | Commanding officer takes an interest in your career. |
| 5 | Promoted to Engineer/Gunner rank 5 |
| 5 | Is now a Chief Petty Officer |
| 6 | Continued as Engineer/Gunner at age 38 |
| 6 | Vessel participates in a diplomatic mission. |
| 6 | Gain a contact. |
| 6 | Promoted to Engineer/Gunner rank 6 |
| 6 | Is now a Master Chief |
| 7 | Continued as Engineer/Gunner at age 42 |
| 7 | Display heroism in battle, saving the whole ship. |
| 7 | Commissioned in Navy/Engineer/Gunner |
| 7 | Is now a Ensign |
| 7 | Promoted to Engineer/Gunner officer rank 2 |
| 7 | Is now a Sublieutenant |
| 8 | Continued as Engineer/Gunner at age 46 |
| 8 | Vessel participates in a notable military engagement. |
| 8 | Promoted to Engineer/Gunner officer rank 3 |
| 8 | Is now a Lieutenant |
| 8 | Forced to muster out. |
| 9 | Became a Scientist at age 50 |
| 9 | Entangled in a bureaucratic or legal morass that distracts you from your work. |
| 9 | Promoted to rank 1 |
| 10 | Continued as Scientist at age 54 |
| 10 | Work for an eccentric but brilliant mentor, who becomes an Ally. |
| 10 | Promoted to rank 2 |
| 11 | Continued as Scientist at age 58 |
| 11 | Moved to a new world. |
| 12 | Aging Crisis. Owe 10,000 for medical bills. |
| 12 | Continued as Scientist at age 62 |
| 12 | Agreed to perform research that goes against your conscience. Gain 1 Enemies. |
| 12 | Promoted to rank 3 |
| 13 | Aging Crisis. Owe 60,000 for medical bills. |
| 13 | Continued as Scientist at age 66 |
| 13 | A new romantic starts. Gain an Ally. |
| 13 | Promoted to rank 4 |
| 14 | Aging Crisis. Owe 10,000 for medical bills. |
| 14 | Continued as Scientist at age 70 |
| 14 | A romantic relationship ends badly. Gain a Rival or Enemy. |
| 15 | Aging Crisis. Owe 40,000 for medical bills. |