| Lvl | Name | Description |
|---|---|---|
| __ | Stone Age | |
| 1 | Bronze Age | Athens |
| 2 | Iron Age | Rome |
| 3 | Medieval | pre-1450 |
| 4 | Renaissance/Colonial | 1450-1700 |
| 5 | Industrial | 1701-1900 |
| 6 | World Wars | 1901-1950 |
| 7 | Modern | 1951-2000 |
This scale is very similar to the scale used in the Arms and Equipment Guide. See the table below. The level numbers are added for clarity and correspond to the Gurps Tech Levels mentioned earlier.
| Lvl | Name | Description |
|---|---|---|
| __ | Stone Age | |
| 1 | Bronze Age | |
| 2 | Dark Ages | |
| 3 | Crusades | |
| Medieval | Default for D20 3rd Edition | |
| 4 | Renaissance | Optional rules in DMG |
The higher resolution at lower Tech Levels may serve a purpose in a (pre-)medieval setting, where the distinction between Crusades and Medieval technology may be relevant. For the purpose of a D20 Modern campaign we can group Crusade and Medieval technology into a single Tech Level and simply use the GURPS scale.