| Term | History |
| 1 | Became a Engineer/Gunner at age 18 |
| 1 | Is now a Crewman |
| 1 | Vessel participates in a diplomatic mission. |
| 1 | Promoted to Engineer/Gunner rank 1 |
| 1 | Is now a Able Spacehand |
| 2 | Continued as Engineer/Gunner at age 22 |
| 2 | A new romantic starts. Gain an Ally. |
| 2 | Promoted to Engineer/Gunner rank 2 |
| 2 | Is now a Petty Officer, 3rd class |
| 3 | Continued as Engineer/Gunner at age 26 |
| 3 | A new romantic starts. Gain an Ally. |
| 3 | Promoted to Engineer/Gunner rank 3 |
| 3 | Is now a Petty Officer, 2nd class |
| 4 | Continued as Engineer/Gunner at age 30 |
| 4 | Betrayal. Convert an Ally into a Rival or Enemy. |
| 4 | Promoted to Engineer/Gunner rank 4 |
| 4 | Is now a Petty Officer, 1st class |
| 5 | Continued as Engineer/Gunner at age 34 |
| 5 | Display heroism in battle, saving the whole ship. |
| 5 | Commissioned in Navy/Engineer/Gunner |
| 5 | Is now a Ensign |
| 5 | Promoted to Engineer/Gunner officer rank 2 |
| 5 | Is now a Sublieutenant |
| 6 | Continued as Engineer/Gunner at age 38 |
| 6 | Vessel participates in a notable military engagement. |
| 6 | Promoted to Engineer/Gunner officer rank 3 |
| 6 | Is now a Lieutenant |
| 7 | Continued as Engineer/Gunner at age 42 |
| 7 | During a battle, defeat or victory depends on your actions. You actions lead to an honorabe discharge. |
| 8 | Became a Field Researcher at age 46 |
| 8 | Advanced training in a specialist field. |