| Term | History |
|---|
| 1 | Became a Scavenger at age 18 |
| 1 | Suffer from a life-threatening illness. |
| 2 | Became a Engineer/Gunner at age 22 |
| 2 | Is now a Crewman |
| 2 | Good fortune |
| 2 | Attempt at commissioned failed. |
| 2 | Promoted to Engineer/Gunner rank 1 |
| 2 | Is now a Able Spacehand |
| 3 | Continued as Engineer/Gunner at age 26 |
| 3 | Vessel participates in a notable military engagement. |
| 3 | Promoted to Engineer/Gunner rank 2 |
| 3 | Is now a Petty Officer, 3rd class |
| 4 | Continued as Engineer/Gunner at age 30 |
| 4 | Gained a contact. |
| 4 | Promoted to Engineer/Gunner rank 3 |
| 4 | Is now a Petty Officer, 2nd class |
| 5 | Continued as Engineer/Gunner at age 34 |
| 5 | Special assignment or duty on board ship. |
| 5 | Forced to continue current assignment |
| 5 | Promoted to Engineer/Gunner rank 4 |
| 5 | Is now a Petty Officer, 1st class |
| 6 | Continued as Engineer/Gunner at age 38 |
| 6 | Scarred. Fully recovered. |
| 7 | Became a Scientist at age 42 |
| 7 | Make a breakthrough in your field. |
| 7 | Promoted to rank 1 |
| 8 | Continued as Scientist at age 46 |
| 8 | A romantic relationship deepens, possibly leading to marriage. Gain an Ally. |
| 8 | Promoted to rank 2 |
| 9 | Continued as Scientist at age 50 |
| 9 | Advanced training in a specialist field. |
| 10 | Continued as Scientist at age 54 |
| 10 | Work for an eccentric but brilliant mentor, who becomes an Ally. |
| 10 | Promoted to rank 3 |
| 11 | Continued as Scientist at age 58 |
| 11 | Refuse to join a cheat in some fashion. |
| 11 | Forced to muster out. |
| 12 | Aging Crisis. Owe 60,000 for medical bills. |
| 12 | Retired at age 62 |
| 12 | Betrayal. Convert an Ally into a Rival or Enemy. |
| 13 | Aging Crisis. Owe 50,000 for medical bills. |
| 13 | A romantic relationship deepens, possibly leading to marriage. Gain an Ally. |
| 14 | Aging Crisis. Owe 40,000 for medical bills. |
| 14 | A romantic relationship deepens, possibly leading to marriage. Gain an Ally. |
| 15 | Aging Crisis. Owe 50,000 for medical bills. |