| Term | History |
| 1 | Became a Line/Crew at age 18 |
| 1 | Is now a Crewman |
| 1 | Gained a contact. |
| 2 | Continued as Line/Crew at age 22 |
| 2 | Vessel participates in a diplomatic mission. |
| 2 | Gain a contact. |
| 3 | Continued as Line/Crew at age 26 |
| 3 | You join a gambling circle on board. |
| 3 | Promoted to Line/Crew rank 1 |
| 3 | Is now a Able Spacehand |
| 4 | Voluntarily left Line/Crew |
| 4 | Switched to Engineer/Gunner at age 30 |
| 4 | Nearly killed. Fully recovered. |
| 4 | Promoted to Engineer/Gunner rank 2 |
| 4 | Is now a Petty Officer, 3rd class |
| 5 | Continued as Engineer/Gunner at age 34 |
| 5 | Vessel participates in a notable military engagement. |
| 6 | Continued as Engineer/Gunner at age 38 |
| 6 | Special assignment or duty on board ship. |
| 7 | Continued as Engineer/Gunner at age 42 |
| 7 | Special assignment or duty on board ship. |
| 7 | Forced to muster out. |
| 8 | Became a Cavalry at age 46 |
| 8 | Is now a Private |
| 8 | Forced out after co-operating with military investigation in commanding officer's illegal activity. |
| 9 | Returned to Engineer/Gunner at age 50 |
| 9 | Moved to a new world. |
| 9 | Promoted to Engineer/Gunner rank 3 |
| 9 | Is now a Petty Officer, 2nd class |
| 10 | Continued as Engineer/Gunner at age 54 |
| 10 | Advanced training in a specialist field |
| 10 | Promoted to Engineer/Gunner rank 4 |
| 10 | Is now a Petty Officer, 1st class |
| 11 | Voluntarily left Engineer/Gunner |
| 11 | Became a Scavenger at age 58 |
| 11 | Suffer from a life-threatening illness. |
| 11 | Promoted to rank 1 |