Save-game file format

Modified on Tue, 5 Nov at 12:14 PM

Latest file format is version 14.

Current format 14:

Game can be saved either by scripting or using the console command /save.

The file format is binary. Chunk data is RLE compressed to reduce redundant data. Custom data sections are compressed using Deflate algorithm.

Byte Pos	Length	Type	Description
0	1	Byte	File format number
1	1	Byte	Chunk size (16 or 32 as of Voxel Play 6.0)
1	4	Float	Position x of the character controller
5	4	Float	Position y of the character controller
9	4	Float	Position z of the character controller
13	4	Float	Character controller’s transform.eulerAngles.x
17	4	Float	Character controller’s transform.eulerAngles.y
21	4	Float	Character controller’s transform.eulerAngles.z
25	4	Float	Camera’s transform.eulerAngles.x
29	4	Float	Camera’s transform.eulerAngles.y
33	4	Float	Camera’s transform.eulerAngles.z
37	2	Int16	Number of voxel definitions
39	Variable	Strings	Names of each voxel definition (list)
	2	Int16	Number of item definitions
	Variable	Strings	Names of each item definition (list) - this includes the item definitions for torches
??	4	Int	Number of chunks
START OF CHUNK
	4	Float	Position x of the chunk
	4	Float	Position y of the chunk
	4	Float	Position z of the chunk
	1	Byte	If this chunk has some voxels above terrain surface (1) or not (0). Used for computing lightmap when neighbour chunks do not exist (yet). Above surface chunks assume Sun light from above. Chunks below surface won't receive Sun light from above if there's no chunk on top.
	1	Byte	1 if the chunk is completely generated. 0 if the chunk was modified after calling GetChunkUnpopulated() method but the terrain generator has not yet filled the chunk with contents.
	2	Int16	Number of words
FOR EACH VOXEL REPETITION ("WORD")...
	2	Int16	Index of the voxel definition list
	1	Byte	Voxel color (R) (0-255)
	1	Byte	Voxel color (G) (0-255)
	1	Byte	Voxel color (B) (0-255)
	2	Int16	Start index of the voxel repetition
	2	Int16	Repetitions
	1	Byte	If voxel is of transparent type or 6-textures opaque type, a flags byte with info with water level and/or voxel texture rotation info. "0" otherwise
...END VOXEL REPETITION
	2	Int16	Number of torches or light sources
FOR EACH LIGHT SOURCE...
	2	Int16	Index of the voxel within the chunk where the light source is
	4	Float	Normal.x (used to determine the face of the voxel where the light source is attached)
	4	Float	Normal.y
	4	Float	Normal.z
	2	Int16	Index of the item definition for the torch in the header list
...END OF LIGHT SOURCES SECTION
	2	Int16	Number of items in the chunk
FOR EACH ITEM
	2	Int16	Index of the item definition in the header list
	4	Float	Position x of the item
	4	Float	Position y of the item
	4	Float	Position z of the item
	2	Int16	Quantity
...END OF ITEMS SECTION
	2	Int16	Number of voxels in this chunk with custom data
FOR EACH VOXEL WITH CUSTOM DATA...
	2	Int16	Index of voxel in the chunk
	2	Int16	Number of custom properties
	4	Int	Property Id
	4	Float	Float value
	??	String	String value
...END OF PER VOXEL CUSTOM DATA SECTION
END OF CHUNK
	2	Int16	Number of saved gameobjects in the world
FOR EACH GAMEOBJECT...
		String	Path for the prefab from a Resources folder (ie. "MyPrefabs/thisprefab" where MyPrefabs is a folder inside Resources folder)
		String	Name of the gameobject
	4	Float	Position x
	4	Float	Position y
	4	Float	Position z
	4	Float	Rotation angle x
	4	Float	Rotation angle y
	4	Float	Rotation angle z
	4	Float	Scale x
	4	Float	Scale y
	4	Float	Scale z
	2	Int16	Number of custom data values
PER EACH GAMEOBJECT DATA VALUE
		String	Key
		String	Value
END OF DATA VALUE
END OF GAMEOBJECT

	2	Int16	Number of custom data sections
PER EACH CUSTOM DATA SECTION
		String	Key
		Int16	Length of byte array
		Byte[]	Data contents
END OF CUSTOM DATA SECTION

Previous versions:

Version 13:

Byte Pos	Length	Type	Description
0	1	Byte	File format number
1	1	Byte	Chunk size (16 or 32 as of Voxel Play 6.0)
1	4	Float	Position x of the character controller
5	4	Float	Position y of the character controller
9	4	Float	Position z of the character controller
13	4	Float	Character controller’s transform.eulerAngles.x
17	4	Float	Character controller’s transform.eulerAngles.y
21	4	Float	Character controller’s transform.eulerAngles.z
25	4	Float	Camera’s transform.eulerAngles.x
29	4	Float	Camera’s transform.eulerAngles.y
33	4	Float	Camera’s transform.eulerAngles.z
37	2	Int16	Number of voxel definitions
39	Variable	Strings	Names of each voxel definition (list)
	2	Int16	Number of item definitions
	Variable	Strings	Names of each item definition (list) - this includes the item definitions for torches
??	4	Int	Number of chunks
START OF CHUNK
	4	Float	Position x of the chunk
	4	Float	Position y of the chunk
	4	Float	Position z of the chunk
	1	Byte	If this chunk has some voxels above terrain surface (1) or not (0). Used for computing lightmap when neighbour chunks do not exist (yet). Above surface chunks assume Sun light from above. Chunks below surface won't receive Sun light from above if there's no chunk on top.
	2	Int16	Number of words
FOR EACH VOXEL REPETITION ("WORD")...
	2	Int16	Index of the voxel definition list
	1	Byte	Voxel color (R) (0-255)
	1	Byte	Voxel color (G) (0-255)
	1	Byte	Voxel color (B) (0-255)
	2	Int16	Start index of the voxel repetition
	2	Int16	Repetitions
	1	Byte	If voxel is of transparent type or 6-textures opaque type, a flags byte with info with water level and/or voxel texture rotation info. "0" otherwise
...END VOXEL REPETITION
	2	Int16	Number of torches or light sources
FOR EACH LIGHT SOURCE...
	2	Int16	Index of the voxel within the chunk where the light source is
	4	Float	Normal.x (used to determine the face of the voxel where the light source is attached)
	4	Float	Normal.y
	4	Float	Normal.z
	2	Int16	Index of the item definition for the torch in the header list
...END OF LIGHT SOURCES SECTION
	2	Int16	Number of items in the chunk
FOR EACH ITEM
	2	Int16	Index of the item definition in the header list
	4	Float	Position x of the item
	4	Float	Position y of the item
	4	Float	Position z of the item
	2	Int16	Quantity
...END OF ITEMS SECTION
	2	Int16	Number of voxels in this chunk with custom data
FOR EACH VOXEL WITH CUSTOM DATA...
	2	Int16	Index of voxel in the chunk
	2	Int16	Number of custom properties
	4	Int	Property Id
	4	Float	Float value
	??	String	String value
...END OF PER VOXEL CUSTOM DATA SECTION
END OF CHUNK
	2	Int16	Number of saved gameobjects in the world
FOR EACH GAMEOBJECT...
		String	Path for the prefab from a Resources folder (ie. "MyPrefabs/thisprefab" where MyPrefabs is a folder inside Resources folder)
		String	Name of the gameobject
	4	Float	Position x
	4	Float	Position y
	4	Float	Position z
	4	Float	Rotation angle x
	4	Float	Rotation angle y
	4	Float	Rotation angle z
	4	Float	Scale x
	4	Float	Scale y
	4	Float	Scale z
	2	Int16	Number of custom data values
PER EACH GAMEOBJECT DATA VALUE
		String	Key
		String	Value
END OF DATA VALUE
END OF GAMEOBJECT

	2	Int16	Number of custom data sections
PER EACH CUSTOM DATA SECTION
		String	Key
		Int16	Length of byte array
		Byte[]	Data contents
END OF CUSTOM DATA SECTION

Version 12:

Byte Pos	Length	Type	Description
0	1	Byte	File format number
1	1	Byte	Chunk size (16 or 32 as of Voxel Play 6.0)
1	4	Float	Position x of the character controller
5	4	Float	Position y of the character controller
9	4	Float	Position z of the character controller
13	4	Float	Character controller’s transform.eulerAngles.x
17	4	Float	Character controller’s transform.eulerAngles.y
21	4	Float	Character controller’s transform.eulerAngles.z
25	4	Float	Camera’s transform.eulerAngles.x
29	4	Float	Camera’s transform.eulerAngles.y
33	4	Float	Camera’s transform.eulerAngles.z
37	2	Int16	Number of voxel definitions
39	Variable	Strings	Names of each voxel definition (list)
	2	Int16	Number of item definitions
	Variable	Strings	Names of each item definition (list) - this includes the item definitions for torches
??	4	Int	Number of chunks
START OF CHUNK
	4	Float	Position x of the chunk
	4	Float	Position y of the chunk
	4	Float	Position z of the chunk
	1	Byte	If this chunk has some voxels above terrain surface (1) or not (0). Used for computing lightmap when neighbour chunks do not exist (yet). Above surface chunks assume Sun light from above. Chunks below surface won't receive Sun light from above if there's no chunk on top.
	2	Int16	Number of words
FOR EACH VOXEL REPETITION ("WORD")...
	2	Int16	Index of the voxel definition list
	1	Byte	Voxel color (R) (0-255)
	1	Byte	Voxel color (G) (0-255)
	1	Byte	Voxel color (B) (0-255)
	2	Int16	Start index of the voxel repetition
	2	Int16	Repetitions
	1	Byte	If voxel is of transparent type or 6-textures opaque type, a flags byte with info with water level and/or voxel texture rotation info. "0" otherwise
...END VOXEL REPETITION
	2	Int16	Number of torches or light sources
FOR EACH LIGHT SOURCE...
	2	Int16	Index of the voxel within the chunk where the light source is
	4	Float	Normal.x (used to determine the face of the voxel where the light source is attached)
	4	Float	Normal.y
	4	Float	Normal.z
	2	Int16	Index of the item definition for the torch in the header list
...END OF LIGHT SOURCE
	2	Int16	Number of items in the chunk
FOR EACH ITEM
	2	Int16	Index of the item definition in the header list
	4	Float	Position x of the item
	4	Float	Position y of the item
	4	Float	Position z of the item
	2	Int16	Quantity
END OF CHUNK
	2	Int16	Number of saved gameobjects in the world
FOR EACH GAMEOBJECT...
		String	Path for the prefab from a Resources folder (ie. "MyPrefabs/thisprefab" where MyPrefabs is a folder inside Resources folder)
		String	Name of the gameobject
	4	Float	Position x
	4	Float	Position y
	4	Float	Position z
	4	Float	Rotation angle x
	4	Float	Rotation angle y
	4	Float	Rotation angle z
	4	Float	Scale x
	4	Float	Scale y
	4	Float	Scale z
	2	Int16	Number of custom data values
PER EACH GAMEOBJECT DATA VALUE
		String	Key
		String	Value
END OF DATA VALUE
END OF GAMEOBJECT

	2	Int16	Number of custom data sections
PER EACH CUSTOM DATA SECTION
		String	Key
		Int16	Length of byte array
		Byte[]	Data contents
END OF CUSTOM DATA SECTION

Version 11:

Byte Pos	Length	Type	Description
0	1	Byte	File format number
1	1	Byte	Chunk size (16 or 32 as of Voxel Play 6.0)
1	4	Float	Position x of the character controller
5	4	Float	Position y of the character controller
9	4	Float	Position z of the character controller
13	4	Float	Character controller’s transform.eulerAngles.x
17	4	Float	Character controller’s transform.eulerAngles.y
21	4	Float	Character controller’s transform.eulerAngles.z
25	4	Float	Camera’s transform.eulerAngles.x
29	4	Float	Camera’s transform.eulerAngles.y
33	4	Float	Camera’s transform.eulerAngles.z
37	2	Int16	Number of voxel definitions
39	Variable	Strings	Names of each voxel definition (list)
	2	Int16	Number of item definitions
	Variable	Strings	Names of each item definition (list) - this includes the item definitions for torches
??	4	Int	Number of chunks
START OF CHUNK
	4	Float	Position x of the chunk
	4	Float	Position y of the chunk
	4	Float	Position z of the chunk
	1	Byte	If this chunk has some voxels above terrain surface (1) or not (0). Used for computing lightmap when neighbour chunks do not exist (yet). Above surface chunks assume Sun light from above. Chunks below surface won't receive Sun light from above if there's no chunk on top.
	2	Int16	Number of words
FOR EACH VOXEL REPETITION ("WORD")...
	2	Int16	Index of the voxel definition list
	1	Byte	Voxel color (R) (0-255)
	1	Byte	Voxel color (G) (0-255)
	1	Byte	Voxel color (B) (0-255)
	2	Int16	Start index of the voxel repetition
	2	Int16	Repetitions
	1	Byte	If voxel is of transparent type or 6-textures opaque type, a flags byte with info with water level and/or voxel texture rotation info. "0" otherwise
	1	Byte	If voxel is of custom type, a value of "1" informs that custom rotation angles follows. "0" otherwise
	(4*3)	Float	Custom voxel rotations for X, Y and Z axis. Only if previous byte field = 1.
...END VOXEL REPETITION
	2	Int16	Number of torches or light sources
FOR EACH LIGHT SOURCE...
	2	Int16	Index of the voxel within the chunk where the light source is
	4	Float	Normal.x (used to determine the face of the voxel where the light source is attached)
	4	Float	Normal.y
	4	Float	Normal.z
	2	Int16	Index of the item definition for the torch in the header list
...END OF LIGHT SOURCE
	2	Int16	Number of items in the chunk
FOR EACH ITEM
	2	Int16	Index of the item definition in the header list
	4	Float	Position x of the item
	4	Float	Position y of the item
	4	Float	Position z of the item
	2	Int16	Quantity
END OF CHUNK
	2	Int16	Number of saved gameobjects in the world
FOR EACH GAMEOBJECT...
		String	Path for the prefab from a Resources folder (ie. "MyPrefabs/thisprefab" where MyPrefabs is a folder inside Resources folder)
		String	Name of the gameobject
	4	Float	Position x
	4	Float	Position y
	4	Float	Position z
	4	Float	Rotation angle x
	4	Float	Rotation angle y
	4	Float	Rotation angle z
	4	Float	Scale x
	4	Float	Scale y
	4	Float	Scale z
	2	Int16	Number of custom data values
PER EACH GAMEOBJECT DATA VALUE
		String	Key
		String	Value
END OF DATA VALUE
END OF GAMEOBJECT

	2	Int16	Number of custom data sections
PER EACH CUSTOM DATA SECTION
		String	Key
		Int16	Length of byte array
		Byte[]	Data contents
END OF CUSTOM DATA SECTION

Version 10.0:

Byte Pos	Length	Type	Description
0	1	Byte	File format number
1	1	Byte	Chunk size (16 or 32 as of Voxel Play 6.0)
1	4	Float	Position x of the character controller
5	4	Float	Position y of the character controller
9	4	Float	Position z of the character controller
13	4	Float	Character controller’s transform.eulerAngles.x
17	4	Float	Character controller’s transform.eulerAngles.y
21	4	Float	Character controller’s transform.eulerAngles.z
25	4	Float	Camera’s transform.eulerAngles.x
29	4	Float	Camera’s transform.eulerAngles.y
33	4	Float	Camera’s transform.eulerAngles.z
37	2	Int16	Number of voxel definitions
39	Variable	Strings	Names of each voxel definition (list)
	2	Int16	Number of item definitions
	Variable	Strings	Names of each item definition (list) - this includes the item definitions for torches
??	4	Int	Number of chunks
START OF CHUNK
	4	Float	Position x of the chunk
	4	Float	Position y of the chunk
	4	Float	Position z of the chunk
	1	Byte	If this chunk has some voxels above terrain surface (1) or not (0). Used for computing lightmap when neighbour chunks do not exist (yet). Above surface chunks assume Sun light from above. Chunks below surface won't receive Sun light from above if there's no chunk on top.
	2	Int16	Number of words
FOR EACH VOXEL REPETITION ("WORD")...
	2	Int16	Index of the voxel definition list
	1	Byte	Voxel color (R) (0-255)
	1	Byte	Voxel color (G) (0-255)
	1	Byte	Voxel color (B) (0-255)
	2	Int16	Start index of the voxel repetition
	2	Int16	Repetitions
	1	Byte	If voxel is of transparent type or 6-textures opaque type, a flags byte with info with water level and/or voxel texture rotation info. "0" otherwise
	1	Byte	If voxel is of custom type, a value of "1" informs that custom rotation angles follows. "0" otherwise
	(4*3)	Float	Custom voxel rotations for X, Y and Z axis. Only if previous byte field = 1.
...END VOXEL REPETITION
	2	Int16	Number of torches or light sources
FOR EACH LIGHT SOURCE...
	2	Int16	Index of the voxel within the chunk where the light source is
	4	Float	Normal.x (used to determine the face of the voxel where the light source is attached)
	4	Float	Normal.y
	4	Float	Normal.z
	2	Int16	Index of the item definition for the torch in the header list
...END OF LIGHT SOURCE
	2	Int16	Number of items in the chunk
FOR EACH ITEM
	2	Int16	Index of the item definition in the header list
	4	Float	Position x of the item
	4	Float	Position y of the item
	4	Float	Position z of the item
	2	Int16	Quantity
END OF CHUNK
	2	Int16	Number of saved gameobjects in the world
FOR EACH GAMEOBJECT...
		String	Path for the prefab from a Resources folder (ie. "MyPrefabs/thisprefab" where MyPrefabs is a folder inside Resources folder)
		String	Name of the gameobject
	4	Float	Position x
	4	Float	Position y
	4	Float	Position z
	4	Float	Rotation angle x
	4	Float	Rotation angle y
	4	Float	Rotation angle z
	4	Float	Scale x
	4	Float	Scale y
	4	Float	Scale z
	2	Int16	Number of custom data values
PER EACH GAMEOBJECT DATA VALUE
		String	Key
		String	Value
END OF DATA VALUE
END OF GAMEOBJECT

Version 9.0:

Byte Pos	Length	Type	Description
0	1	Byte	File format number
1	4	Float	Position x of the character controller
5	4	Float	Position y of the character controller
9	4	Float	Position z of the character controller
13	4	Float	Character controller’s transform.eulerAngles.x
17	4	Float	Character controller’s transform.eulerAngles.y
21	4	Float	Character controller’s transform.eulerAngles.z
25	4	Float	Camera’s transform.eulerAngles.x
29	4	Float	Camera’s transform.eulerAngles.y
33	4	Float	Camera’s transform.eulerAngles.z
37	2	Int16	Number of voxel definitions
39	Variable	Strings	Names of each voxel definition (list)
	2	Int16	Number of item definitions
	Variable	Strings	Names of each item definition (list) - this includes the item definitions for torches
??	4	Int	Number of chunks
START OF CHUNK
	4	Float	Position x of the chunk
	4	Float	Position y of the chunk
	4	Float	Position z of the chunk
	1	Byte	If this chunk has some voxels above terrain surface (1) or not (0). Used for computing lightmap when neighbour chunks do not exist (yet). Above surface chunks assume Sun light from above. Chunks below surface won't receive Sun light from above if there's no chunk on top.
	2	Int16	Number of words
FOR EACH VOXEL REPETITION ("WORD")...
	2	Int16	Index of the voxel definition list
	1	Byte	Voxel color (R) (0-255)
	1	Byte	Voxel color (G) (0-255)
	1	Byte	Voxel color (B) (0-255)
	2	Int16	Start index of the voxel repetition
	2	Int16	Repetitions
	1	Byte	If voxel is of transparent type or 6-textures opaque type, a flags byte with info with water level and/or voxel texture rotation info. "0" otherwise
	1	Byte	If voxel is of custom type, a value of "1" informs that custom rotation angles follows. "0" otherwise
	(4*3)	Float	Custom voxel rotations for X, Y and Z axis. Only if previous byte field = 1.
...END VOXEL REPETITION
	2	Int16	Number of torches or light sources
FOR EACH LIGHT SOURCE...
	2	Int16	Index of the voxel within the chunk where the light source is
	4	Float	Normal.x (used to determine the face of the voxel where the light source is attached)
	4	Float	Normal.y
	4	Float	Normal.z
	2	Int16	Index of the item definition for the torch in the header list
...END OF LIGHT SOURCE
	2	Int16	Number of items in the chunk
FOR EACH ITEM
	2	Int16	Index of the item definition in the header list
	4	Float	Position x of the item
	4	Float	Position y of the item
	4	Float	Position z of the item
	2	Int16	Quantity
END OF CHUNK
	2	Int16	Number of saved gameobjects in the world
FOR EACH GAMEOBJECT...
		String	Path for the prefab from a Resources folder (ie. "MyPrefabs/thisprefab" where MyPrefabs is a folder inside Resources folder)
		String	Name of the gameobject
	4	Float	Position x
	4	Float	Position y
	4	Float	Position z
	4	Float	Rotation angle x
	4	Float	Rotation angle y
	4	Float	Rotation angle z
	4	Float	Scale x
	4	Float	Scale y
	4	Float	Scale z
	2	Int16	Number of custom data values
PER EACH GAMEOBJECT DATA VALUE
		String	Key
		String	Value
END OF DATA VALUE
END OF GAMEOBJECT

Version 8.0.

Byte Pos	Length	Type	Description
0	1	Byte	File format number
1	4	Float	Position x of the character controller
5	4	Float	Position y of the character controller
9	4	Float	Position z of the character controller
13	4	Float	Character controller’s transform.eulerAngles.x
17	4	Float	Character controller’s transform.eulerAngles.y
21	4	Float	Character controller’s transform.eulerAngles.z
25	4	Float	Camera’s transform.eulerAngles.x
29	4	Float	Camera’s transform.eulerAngles.y
33	4	Float	Camera’s transform.eulerAngles.z
37	2	Int16	Number of voxel definitions
39	Variable	Strings	Names of each voxel definition (list)
	2	Int16	Number of item definitions
	Variable	Strings	Names of each item definition (list) - this includes the item definitions for torches
??	4	Int	Number of chunks
START OF CHUNK
	4	Float	Position x of the chunk
	4	Float	Position y of the chunk
	4	Float	Position z of the chunk
	1	Byte	If this chunk has some voxels above terrain surface (1) or not (0). Used for computing lightmap when neighbour chunks do not exist (yet). Above surface chunks assume Sun light from above. Chunks below surface won't receive Sun light from above if there's no chunk on top.
	2	Int16	Number of words
FOR EACH VOXEL REPETITION ("WORD")...
	2	Int16	Index of the voxel definition list
	1	Byte	Voxel color (R) (0-255)
	1	Byte	Voxel color (G) (0-255)
	1	Byte	Voxel color (B) (0-255)
	2	Int16	Start index of the voxel repetition
	2	Int16	Repetitions
	1	Byte	If voxel is of transparent type or 6-textures opaque type, a flags byte with info with water level and/or voxel texture rotation info. "0" otherwise
	1	Byte	If voxel is of custom type, a value of "1" informs that custom rotation angles follows. "0" otherwise
	(4*3)	Float	Custom voxel rotations for X, Y and Z axis. Only if previous byte field = 1.
...END VOXEL REPETITION
	2	Int16	Number of torches or light sources
FOR EACH LIGHT SOURCE...
	2	Int16	Index of the voxel within the chunk where the light source is
	4	Float	Normal.x (used to determine the face of the voxel where the light source is attached)
	4	Float	Normal.y
	4	Float	Normal.z
	2	Int16	Index of the item definition for the torch in the header list
...END OF LIGHT SOURCE
	2	Int16	Number of items in the chunk
FOR EACH ITEM
	2	Int16	Index of the item definition in the header list
	4	Float	Position x of the item
	4	Float	Position y of the item
	4	Float	Position z of the item
	2	Int16	Quantity
END OF ITEM
END OF CHUNK

Format 7.0.

Byte Pos	Length	Type	Description
0	1	Byte	File format number
1	4	Float	Position x of the character controller
5	4	Float	Position y of the character controller
9	4	Float	Position z of the character controller
13	4	Float	Character controller’s transform.eulerAngles.x
17	4	Float	Character controller’s transform.eulerAngles.y
21	4	Float	Character controller’s transform.eulerAngles.z
25	4	Float	Camera’s transform.eulerAngles.x
29	4	Float	Camera’s transform.eulerAngles.y
33	4	Float	Camera’s transform.eulerAngles.z
37	2	Int16	Number of voxel definitions
39	Variable	Strings	Names of each voxel definition (list)
	2	Int16	Number of item definitions
	Variable	Strings	Names of each item definition (list)
??	4	Int	Number of chunks
START OF CHUNK
	4	Float	Position x of the chunk
	4	Float	Position y of the chunk
	4	Float	Position z of the chunk
	1	Byte	If this chunk has some voxels above terrain surface (1) or not (0). Used for computing lightmap when neighbour chunks do not exist (yet). Above surface chunks assume Sun light from above. Chunks below surface won't receive Sun light from above if there's no chunk on top.
	2	Int16	Number of words
FOR EACH VOXEL REPETITION ("WORD")...
	2	Int16	Index of the voxel definition list
	1	Byte	Voxel color (R) (0-255)
	1	Byte	Voxel color (G) (0-255)
	1	Byte	Voxel color (B) (0-255)
	2	Int16	Start index of the voxel repetition
	2	Int16	Repetitions
	1	Byte	If voxel is of transparent type or 6-textures opaque type, a flags byte with info with water level and/or voxel texture rotation info. "0" otherwise
	1	Byte	If voxel is of custom type, a value of "1" informs that custom rotation angles follows. "0" otherwise
	(4*3)	Float	Custom voxel rotations for X, Y and Z axis. Only if previous byte field = 1.
...END VOXEL REPETITION
	2	Int16	Number of torches or light sources
FOR EACH LIGHT SOURCE...
	2	Int16	Index of the voxel within the chunk where the light source is
	4	Float	Normal.x (used to determine the face of the voxel where the light source is attached)
	4	Float	Normal.y
	4	Float	Normal.z
...END OF LIGHT SOURCE
	2	Int16	Number of items in the chunk
FOR EACH ITEM
	2	Int16	Index of the item definition in the header list
	4	Float	Position x of the item
	4	Float	Position y of the item
	4	Float	Position z of the item
	2	Int16	Quantity
END OF ITEM
END OF CHUNK

Previous versions:

Format 6.0.

Byte Pos	Length	Type	Description
0	1	Byte	Current file format (3)
1	4	Float	Position x of the character controller
5	4	Float	Position y of the character controller
9	4	Float	Position z of the character controller
13	4	Float	Character controller’s transform.eulerAngles.x
17	4	Float	Character controller’s transform.eulerAngles.y
21	4	Float	Character controller’s transform.eulerAngles.z
25	4	Float	Camera’s transform.eulerAngles.x
29	4	Float	Camera’s transform.eulerAngles.y
33	4	Float	Camera’s transform.eulerAngles.z
37	2	Int16	Number of voxel definitions
39	Variable	Strings	Names of each voxel definition (list)
	2	Int16	Number of item definitions
	Variable	Strings	Names of each item definition (list)
??	4	Int	Number of chunks
START OF CHUNK
	4	Float	Position x of the chunk
	4	Float	Position y of the chunk
	4	Float	Position z of the chunk
	1	Byte	If this chunk has some voxels above terrain surface (1) or not (0). Used for computing lightmap when neighbour chunks do not exist (yet). Above surface chunks assume Sun light from above. Chunks below surface won't receive Sun light from above if there's no chunk on top.
	2	Int16	Number of words
FOR EACH VOXEL REPETITION ("WORD")...
	2	Int16	Index of the voxel definition list
	1	Byte	Voxel color (R) (0-255)
	1	Byte	Voxel color (G) (0-255)
	1	Byte	Voxel color (B) (0-255)
	2	Int16	Start index of the voxel repetition
	2	Int16	Repetitions
	1/0	Byte	If voxel is of transparent type or 6-textures opaque type, a flags byte with info with water level and/or voxel texture rotation info. If voxel is of custom type, a value of "1" informs that custom rotation angles follows
	4*3	Float	Custom voxel rotations for X, Y and Z axis
...END VOXEL REPETITION
	2	Int16	Number of torches or light sources
FOR EACH LIGHT SOURCE...
	2	Int16	Index of the voxel within the chunk where the light source is
	4	Float	Normal.x (used to determine the face of the voxel where the light source is attached)
	4	Float	Normal.y
	4	Float	Normal.z
...END OF LIGHT SOURCE
	2	Int16	Number of items in the chunk
FOR EACH ITEM
	2	Int16	Index of the item definition in the header list
	4	Float	Position x of the item
	4	Float	Position y of the item
	4	Float	Position z of the item
	2	Int16	Quantity
END OF ITEM
END OF CHUNK

Format 5.0.

Byte Pos	Length	Type	Description
0	1	Byte	Current file format (3)
1	4	Float	Position x of the character controller
5	4	Float	Position y of the character controller
9	4	Float	Position z of the character controller
13	4	Float	Character controller’s transform.eulerAngles.x
17	4	Float	Character controller’s transform.eulerAngles.y
21	4	Float	Character controller’s transform.eulerAngles.z
25	4	Float	Camera’s transform.eulerAngles.x
29	4	Float	Camera’s transform.eulerAngles.y
33	4	Float	Camera’s transform.eulerAngles.z
37	2	Int16	Number of voxel definitions
39	???	Strings	Names of each voxel definition (list)
??	4	Int	Number of chunks
START OF CHUNK
	4	Float	Position x of the chunk
	4	Float	Position y of the chunk
	4	Float	Position z of the chunk
	1	Byte	If this chunk has some voxels above terrain surface (1) or not (0). Used for computing lightmap when neighbour chunks do not exist (yet). Above surface chunks assume Sun light from above. Chunks below surface won't receive Sun light from above if there's no chunk on top.
	2	Int16	Number of words
FOR EACH VOXEL REPETITION ("WORD")...
	2	Int16	Index of the voxel definition list
	1	Byte	Voxel color (R) (0-255)
	1	Byte	Voxel color (G) (0-255)
	1	Byte	Voxel color (B) (0-255)
	2	Int16	Start index of the voxel repetition
	2	Int16	Repetitions
	1/0	Byte	If voxel is of transparent type or 6-textures opaque type, a flags byte with info with water level and/or voxel texture rotation info. If voxel is of custom type, a value of "1" informs that custom rotation angles follows
	4*3	Float	Custom voxel rotations for X, Y and Z axis
...END VOXEL REPETITION
	2	Int16	Number of torches or light sources
FOR EACH LIGHT SOURCE...
	2	Int16	Index of the voxel within the chunk where the light source is
	4	Float	Normal.x (used to determine the face of the voxel where the light source is attached)
	4	Float	Normal.y
	4	Float	Normal.z
...END OF LIGHT SOURCE
END OF CHUNK