The grades
A grade says how strong the source behind one number is. Five grades run from a figure a primary source states to a figure the designer chose.
The letter is always printed. A grade does not say the number is right for the game. It says what stands behind it.
| Grade | What it means | Numbers |
|---|---|---|
| APrimary | A primary source states the figure, and the game uses it as stated. | 3 |
| BSecondary | A secondary source quotes the figure, such as Atomic Rockets quoting NASA. | 53 |
| CDerived | The figure is arithmetic from an A or B figure, and the arithmetic is shown. | 19 |
| DAnalogy | A real figure scaled into the setting, with the real figure and the scaling stated. | 45 |
| EAuthored | The game chose the figure for play, and the page says where the sources are silent. | 675 |
Grade A: Primary
A primary source states the figure, and the game uses it as stated.
Example: Hygiea distance from the sun in Mining the belt is 3.139 AU.
Show the 3 numbers that hold this grade.
Grade B: Secondary
A secondary source quotes the figure, such as Atomic Rockets quoting NASA.
Example: Density of air in Fire and damage control is 1.225 kg per m^3.
Show the 53 numbers that hold this grade.
Grade C: Derived
The figure is arithmetic from an A or B figure, and the arithmetic is shown.
Example: Density of laminate plate (silicon carbide with tungsten) in Armor and the six faces is 4.8 t/m^3.
Show the 19 numbers that hold this grade.
Grade D: Analogy
A real figure scaled into the setting, with the real figure and the scaling stated.
Example: Ticks a vented hold stays open while its cargo cools in Fire and damage control is 3 ticks.
Show the 45 numbers that hold this grade.
Grade E: Authored
The game chose the figure for play, and the page says where the sources are silent.
Example: Length of one fight tick, which every fire and vent number below is per in Fire and damage control is 20 seconds.