Server Info

This is sent by the client after being accepted by the server. It contains information about the server, such as the world seed, the current game tick, and the enabled mods.

• ID: 0x02
• Size: Variable
• LZ4 Compressed: Yes
• State: Joining
• Bound To: Server -> Client

Structure

Server Info

Field Name	Field Type	Notes
Version	be u32	The game build number
Gamemode	enum be u32	Game mode identifier
Seed	be u32	World seed
Gametick	be u32	Current game tick
Mod Count	be u32	Amount of enabled mods
Mod Data	ModData[Mod Count]	A list of enabled mods
Game Data	String	This JSON string is parsed and stored in the game script self.data
Script Key Count	be u32
Script Data	GenericData[Script Key Count]
Generic Key Count	be u32
Generic Data	GenericData[Generic Key Count]
Flags	bitfield	Developer mode

Gamemode enum

Entry size: 4 bytes

Value	Name
0	AlphaTerrain
1	FlatTerrain
2	ClassicTerrain
3	CreatedTerrain_Test
4	CreatedTerrain
5	Challenge
6	ChallengeBuilder
7	Terrain
8	Menu Creation
14	Survival
15	Custom
16	Development

ModData

Field Name	Field Type	Size
File ID	u64	8 bytes
UUID	byte[16]	16 bytes

GenericData

Purpose is not fully known.

note

Channel field name is a guess. It is unconfirmed what this field is used for.

Field Name	Field Type	Size
UUID	byte[16]	16 bytes
Size	u16	2 bytes
Key	u32	4 bytes

Flags bitfield

Contains information about which movement keys are pressed. All bits are always low while the player's character is seated or tumbling.

Bits	Field name	Notes
7	Developer Mode	High when the Developer Mode is enabled. This is a server-side setting that can be toggled by launching with the -dev command line argument.
6	Unknown	Not known to be anything other than low.
5
4
3
2
1
0