| Term | History |
| 1 | Became a Scientist at age 18 |
| 1 | Advanced training in a specialist field. |
| 1 | Promoted to rank 1 |
| 2 | Continued as Scientist at age 22 |
| 2 | Advanced training in a specialist field. |
| 2 | Promoted to rank 2 |
| 3 | Continued as Scientist at age 26 |
| 3 | Make a breakthrough in your field. |
| 3 | Promoted to rank 3 |
| 4 | Voluntarily left Scientist |
| 4 | Became a Line/Crew at age 30 |
| 4 | Is now a Crewman |
| 4 | Advanced training in a specialist field |
| 4 | Promoted to Line/Crew rank 1 |
| 4 | Is now a Able Spacehand |
| 5 | Continued as Line/Crew at age 34 |
| 5 | You foil an attempted crime on board, such as mutiny, sabotage, smuggling or conspiracy. Gain an Enemy. |
| 5 | Promoted to Line/Crew rank 2 |
| 5 | Is now a Petty Officer, 3rd class |
| 6 | Continued as Line/Crew at age 38 |
| 6 | Scarred. Owe 1,250 for medical bills. |
| 6 | Promoted to Line/Crew rank 3 |
| 6 | Is now a Petty Officer, 2nd class |
| 7 | Continued as Line/Crew at age 42 |
| 7 | Special assignment or duty on board ship. |
| 8 | Continued as Line/Crew at age 46 |
| 8 | You are tormented by or quarrel with an officer or fellow crewman. Gain that character as a Rival. |
| 9 | Became a Explorer at age 50 |
| 9 | Psychologically damaged by your time in the scouts. |
| 10 | Aging Crisis. Owe 20,000 for medical bills. |
| 10 | Retired at age 54 |
| 10 | Moved to a new world. |
| 11 | Aging Crisis. Owe 50,000 for medical bills. |
| 11 | Victim of a crime |
| 12 | Aging Crisis. Owe 30,000 for medical bills. |
| 12 | Contact with Government. |
| 13 | Aging Crisis. Owe 20,000 for medical bills. |
| 13 | Gained a contact. |
| 14 | Aging Crisis. Owe 20,000 for medical bills. |
| 14 | Betrayal. Convert an Ally into a Rival or Enemy. |
| 15 | Aging Crisis. Owe 10,000 for medical bills. |
| 15 | Moved to a new world. |
| 16 | Aging Crisis. Owe 40,000 for medical bills. |