| Roll | Type | Description | Notes |
| 01-15 | 1 | Terran Standard | Conditions approximating those on Terra |
| 16-25 | 1 | Terran Steppe | Free standing water is under 40% of the planetary surface. Conditions resemble those of the Arid Planets except that forested and well watered stepelands would be considerable larger in extent. |
| 26-34 | 1 | Terran Arid | Free standing water is under 25% of the planetary surface. Conditions tend toward desert in the interiors of land masses. Better watered regions resemble Terran prairies and stepplands. |
| 35-39 | 1 | Terran Desert | Free standing water is under 10% of the planetary surface. Conditions resemble Terran deserts over most of the planet. Extreme conditions approximate those described in "Dune". Humanoid types require some form of protective clothing and filter masks to prevent dehydration and to protect against high dust concentrations in the air. |
| 40-49 | 1 | Terran Swamp/Jungle | Free standing water ranges from 70% to 85% of the planetary surface, with much of the land surface low-lying. Arms of the shallow seas often penetrate far inland, providing ready sources of moisture for precipitation. Humidity levels are high and precipitation tends to be fairly heavy and constant. |
| 50-59 | 1 | Terran Tundra | When planetary temperatures are low, a large portion of the water will be "locked in" by surface ice or by permafrost lying 20 to 50 cm below the surface of the soil. The effect is quite "desertlike" and tundra conditions could be described as "cold desert". |
| 60-64 | 1 | Terran Ocean | Free standing water exceeds 80% of the planetary surface, conditions across most of the planet will tend to be maritime in nature. Land masses tend to be small, with many island archipelagoes and individual islands dotting the lanetary seas and ocean. The humidity will be high and the precipitation adequate to heavy, especially where temperatures are high. |
| 65-74 | 2 | Terran Standard w/out Seasonality | The planet is marked by clearly defined and relatively unchanging belts of climate. Illumination and temperatures are quite high in equatorial regions. Depending on available moisture, either a dense jungle or desert belt will develop along the equator. Middle latitudes have temperate to tropical climates and temps. |
| 75-77 | 3 | Terran w/Extreme Seasonality | Large portions of the planet experience continuous day or continuous night for long periods. Illumination and temperatures will be high during the summer period, and sub arctic during the winter. |
| 78-84 | 4 | Terran w/Normal Axial Tilt, Outer Edge of Ecosphere | Conditions are somewhat chilly but not overly severe. |
| 85-88 | 5 | Terran w/Minimal Axial Tilt, Outer Edge of Ecosphere | |
| 89-90 | 6 | Terran w/Extreme Axial Tilt, Outer Edge of Ecosphere | |
| 91-92 | 7 | Terran w/Normal Axial Tilt, Inner Edge of Ecosphere | |
| 93-95 | 8 | Terran w/Minimal Axial Tilt, Inner Edge of Ecosphere | |
| 96 | 9 | Terran w/Extreme Axial Tilt, Inner Edge of Ecosphere | |
| 97 | 10,11,12 | Terran w/Eccentric Orbit | |
| 98-99 | 13 | Terran Inside Inner Ecosphere | |
| 100 | 14 | Terran Outside Steller Ecosphere | |
| *13 | Airless/Low Pressure | ||
| *14 | Airless/Low Pressure | ||
| *15 | Airless/Low Pressure | ||
| *15 | High Pressure | ||
| *16-19 | Other |
