| Property Name | Definition |
|---|---|
| Compatible | Where this mod is installed. |
| Difficulty | This many successes are required to successfully install the mod. |
| Size | The maximum Size of vehicle this mod may be installed into. |
| Time | The amount of time (in hours) that must be spent in total to make this mod. The install check must be made this number of times. |
| Weight | Change the weight of the target by this amount on successful installation. |
| Fuel | This weapon requires fuel. It has a tank of this size requiring fuel of the specified type. If it ever runs out of fuel, you can no longer use any of its Fuel effects. |