| Term | History |
| 1 | Became a Line/Crew at age 18 |
| 1 | Is now a Crewman |
| 1 | Special assignment or duty on board ship. |
| 2 | Continued as Line/Crew at age 22 |
| 2 | A new romantic starts. Gain an Ally. |
| 2 | Promoted to Line/Crew rank 1 |
| 2 | Is now a Able Spacehand |
| 3 | Continued as Line/Crew at age 26 |
| 3 | Gained a contact. |
| 3 | Promoted to Line/Crew rank 2 |
| 3 | Is now a Petty Officer, 3rd class |
| 4 | Continued as Line/Crew at age 30 |
| 4 | Vessel participates in a notable military engagement. |
| 4 | Promoted to Line/Crew rank 3 |
| 4 | Is now a Petty Officer, 2nd class |
| 5 | Continued as Line/Crew at age 34 |
| 5 | Vessel participates in a notable military engagement. |
| 5 | Promoted to Line/Crew rank 4 |
| 5 | Is now a Petty Officer, 1st class |
| 6 | Continued as Line/Crew at age 38 |
| 6 | You are tormented by or quarrel with an officer or fellow crewman. Gain that character as a Rival. |
| 7 | Became a Physician at age 42 |
| 7 | Make a breakthrough in your field. |
| 7 | Promoted to rank 1 |
| 8 | Continued as Physician at age 46 |
| 8 | Betrayal. Convert an Ally into a Rival or Enemy. |
| 8 | Promoted to rank 2 |
| 9 | Continued as Physician at age 50 |
| 9 | Refused to perform research that goes against your conscience. |
| 10 | Continued as Physician at age 54 |
| 10 | Agreed to perform research that goes against your conscience. Gain 3 Enemies. |
| 10 | Promoted to rank 3 |
| 11 | Continued as Physician at age 58 |
| 11 | Advanced training in a specialist field. |
| 12 | Aging Crisis. Owe 40,000 for medical bills. |