# Requirement Types

Requirement types provided by Spark's core systems.

| Requirement Type                       | System    | Description                                                |
| -------------------------------------- | --------- | ---------------------------------------------------------- |
| `DistanceToCoordinatesRequirementType` | Playables | Entity must be within a distance of specified coordinates. |
| `RuleValueRequirementType`             | Rules     | A rule must have a specific boolean value.                 |

Plugin-specific requirement types are listed under each plugin's Requirements page.

See [Triggers & Requirements](/documentation/developer-guide/core-systems/triggers-system.md) for how to create custom requirement types.


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