| Interface | Description | 
|---|---|
| ArchetypeVolume | A copy of a region taken from another extent. | 
| BiomeVolume | A volume containing biomes that can be at least accessed. | 
| BlockVolume | A volume containing blocks that can be at least accessed. | 
| EntityUniverse | A container of  Entityinstances. | 
| Extent | A mutable object containing blocks, tile entities, entities, and possibly
 other game objects. | 
| ExtentBufferFactory | A factory for creating buffers to store extent data. | 
| ImmutableBiomeVolume | An volume containing biomes that can be accessed but not modified. | 
| ImmutableBlockVolume | A volume containing blocks that can be accessed but not modified. | 
| InteractableVolume | |
| LocationCompositeValueStore | A type of  Locationbased value store that can handle proxied data api
 related queries for specific positions. | 
| MutableBiomeVolume | A volume containing biomes that can be accessed and modified. | 
| MutableBlockVolume | A volume containing blocks that can be accessed and modified. | 
| TileEntityVolume | A mutable block volume that also contains  TileEntityinstances. | 
| UnmodifiableBiomeVolume | A volume containing biomes that can be accessed but not modified. | 
| UnmodifiableBlockVolume | A volume containing blocks that can be accessed but not modified. | 
| Class | Description | 
|---|---|
| EntityUniverse.EntityHit | The result of an intersection between a ray and an entity. | 
| Enum | Description | 
|---|---|
| StorageType | Storage types that can be used for storing blocks and biomes. |