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Messages Utility

rebaserHEAD edited this page Oct 17, 2026 · 5 revisions

reference, committed verified 2026-10-17 bootstrap ee2b70d

Every message in the Utility area: its opcode, direction, how far it is verified, and its fields.

This grouping comes from where the declarations sit today. It claims nothing about what these messages do, and it changes when the client's areas are settled.

Note

Generated from the message declarations at bootstrap ee2b70d by Tools/NexusTomorrow.ProtocolReference. Don't edit it by hand: change the declaration's documentation and regenerate.

Server to client

0x03EF Server03EF

Opcode Direction Verified to
0x03EF server to client unverified
Field Bits Encoding
Unknown0 32 unsigned
Unknown1 count 32 unsigned
Unknown1 array, counted by Unknown1 count
Unknown1[] 8 unsigned

0x0414 Server0414

Opcode Direction Verified to
0x0414 server to client unverified
Field Bits Encoding
Unknown0 64 unsigned
Unknown1 32 unsigned
Unknown2 2 unsigned

0x042A Server042A

Opcode Direction Verified to
0x042A server to client unverified
Field Bits Encoding
Unknown0 32 unsigned
Unknown1 32 unsigned
Unknown2 1 unsigned

0x0431 Server0431

Opcode Direction Verified to
0x0431 server to client unverified
Field Bits Encoding
Unknown0 64 unsigned
Unknown1 count 32 unsigned
Unknown1 array, counted by Unknown1 count
Unknown1[].Unknown0 32 unsigned
Unknown1[].Unknown1 32 unsigned

0x0436 Server0436

Opcode Direction Verified to
0x0436 server to client unverified
Field Bits Encoding
Unknown0 64 unsigned
Unknown1 32 unsigned
Unknown2 14 unsigned
Unknown3 64 unsigned
Unknown4 8 unsigned
Unknown5 8 unsigned
Unknown6 8 unsigned
Unknown7 8 unsigned
Unknown8 8 unsigned
Unknown9 8 unsigned
Unknown10 8 unsigned
Unknown11 8 unsigned
Unknown12 8 unsigned
Unknown13 8 unsigned
Unknown14 8 unsigned
Unknown15 8 unsigned
Unknown16 8 unsigned
Unknown17 8 unsigned
Unknown18 8 unsigned
Unknown19 8 unsigned
Unknown20 8 unsigned
Unknown21 8 unsigned
Unknown22 8 unsigned
Unknown23 8 unsigned
Unknown24 8 unsigned
Unknown25 8 unsigned
Unknown26 8 unsigned
Unknown27 8 unsigned
Unknown28 8 unsigned
Unknown29 8 unsigned
Unknown30 8 unsigned
Unknown31 8 unsigned
Unknown32 8 unsigned
Unknown33 8 unsigned
Unknown34 8 unsigned
Unknown35 8 unsigned
Unknown36 8 unsigned
Unknown37 8 unsigned
Unknown38 8 unsigned
Unknown39 8 unsigned
Unknown40 8 unsigned
Unknown41 8 unsigned
Unknown42 8 unsigned
Unknown43 8 unsigned
Unknown44 8 unsigned
Unknown45 8 unsigned
Unknown46 8 unsigned
Unknown47 8 unsigned
Unknown48 8 unsigned
Unknown49 8 unsigned
Unknown50 8 unsigned
Unknown51 8 unsigned
Unknown52 8 unsigned
Unknown53 8 unsigned
Unknown54 8 unsigned
Unknown55 8 unsigned
Unknown56 8 unsigned
Unknown57 8 unsigned
Unknown58 8 unsigned
Unknown59 8 unsigned
Unknown60 8 unsigned
Unknown61 8 unsigned
Unknown62 8 unsigned
Unknown63 8 unsigned
Unknown64 8 unsigned
Unknown65 8 unsigned
Unknown66 8 unsigned
Unknown67 8 unsigned

0x0438 Server0438

Opcode Direction Verified to
0x0438 server to client unverified
Field Bits Encoding
Unknown0 64 unsigned
Unknown1 32 unsigned
Unknown2 32 unsigned; counts Unknown3, Unknown4
Unknown3 array, counted by Unknown2
Unknown3[].Unknown0 14 unsigned
Unknown3[].Unknown1 64 unsigned
Unknown4 array, counted by Unknown2
Unknown4[] 32 unsigned

0x043A Server043A

Opcode Direction Verified to
0x043A server to client unverified
Field Bits Encoding
Unknown0 32 unsigned
Unknown1 1 unsigned

0x0441 Server0441

Opcode Direction Verified to
0x0441 server to client unverified
Field Bits Encoding
Unknown0 64 unsigned
Unknown1 32 unsigned
Unknown2 14 unsigned
Unknown3 64 unsigned
Unknown4 14 unsigned
Unknown5 64 unsigned
Unknown6 1 unsigned

0x045A Server045A

Opcode Direction Verified to
0x045A server to client unverified
Field Bits Encoding
Unknown0 14 unsigned
Unknown1 64 unsigned
Unknown2 32 unsigned
Unknown3 32 unsigned
Unknown4 32 unsigned

0x0461 Server0461

Opcode Direction Verified to
0x0461 server to client unverified
Field Bits Encoding
Unknown0 15 unsigned
Unknown1 3 unsigned
Unknown2 32 unsigned
Unknown3 32 unsigned

0x0468 Server0468

Opcode Direction Verified to
0x0468 server to client unverified
Field Bits Encoding
Unknown0 64 unsigned
Unknown1 14 unsigned
Unknown2 64 unsigned
Unknown3 count 32 unsigned
Unknown3 array, counted by Unknown3 count
Unknown3[].Unknown0 15 unsigned
Unknown3[].Unknown1 16 unsigned

0x0516 Server0516

Opcode Direction Verified to
0x0516 server to client unverified
Field Bits Encoding
Unknown0 64 unsigned
Unknown1 64 unsigned
Unknown2 14 unsigned
Unknown3 64 unsigned
Unknown4 32 unsigned
Unknown5 7 unsigned

0x0553 Server0553

Opcode Direction Verified to
0x0553 server to client unverified
Field Bits Encoding
Unknown0 32 unsigned
Unknown1 count 5 unsigned
Unknown1 array, counted by Unknown1 count
Unknown1[].Unknown0 64 unsigned
Unknown1[].Unknown1 64 unsigned
Unknown1[].Unknown2 18 unsigned
Unknown1[].Unknown3 the fields below
Unknown1[].Unknown3.Unknown0 9 unsigned
Unknown1[].Unknown3.Unknown1 32 unsigned
Unknown1[].Unknown4 32 unsigned
Unknown1[].Unknown5 32 unsigned
Unknown1[].Unknown6 64 unsigned
Unknown1[].Unknown7 32 unsigned
Unknown1[].Unknown8 64 unsigned
Unknown1[].Unknown9 32 float
Unknown1[].Unknown10 32 unsigned
Unknown1[].Unknown11 8 unsigned
Unknown1[].Unknown12 32 unsigned
Unknown1[].Unknown13 32 unsigned
Unknown1[].Unknown14 32 unsigned
Unknown1[].Unknown15[0] the fields below
Unknown1[].Unknown15[0].Unknown0 3 unsigned
Unknown1[].Unknown15[0].Unknown1 32 unsigned
Unknown1[].Unknown15[0].Unknown2 32 unsigned
Unknown1[].Unknown15[1] the fields below
Unknown1[].Unknown15[1].Unknown0 3 unsigned
Unknown1[].Unknown15[1].Unknown1 32 unsigned
Unknown1[].Unknown15[1].Unknown2 32 unsigned
Unknown1[].Unknown16 18 unsigned
Unknown1[].Unknown17 count 3 unsigned
Unknown1[].Unknown17 array, counted by Unknown1[].Unknown17 count
Unknown1[].Unknown17[] 32 unsigned
Unknown1[].Unknown18 count 4 unsigned
Unknown1[].Unknown18 array, counted by Unknown1[].Unknown18 count
Unknown1[].Unknown18[] 32 unsigned
Unknown1[].Unknown19 count 6 unsigned
Unknown1[].Unknown19 array, counted by Unknown1[].Unknown19 count
Unknown1[].Unknown19[].Unknown0 14 unsigned
Unknown1[].Unknown19[].Unknown1 64 unsigned
Unknown1[].Unknown20 32 unsigned

0x0554 Server0554

Opcode Direction Verified to
0x0554 server to client unverified
Field Bits Encoding
Unknown0 32 unsigned

0x0567 Server0567

Opcode Direction Verified to
0x0567 server to client unverified
Field Bits Encoding
Unknown0 64 unsigned
Unknown1 8 unsigned

0x056B Server056B

Opcode Direction Verified to
0x056B server to client unverified
Field Bits Encoding
Unknown0 64 unsigned
Unknown1 64 unsigned
Unknown2 32 unsigned
Unknown3 64 unsigned

0x056C Server056C

Opcode Direction Verified to
0x056C server to client unverified
Field Bits Encoding
Unknown0 64 unsigned
Unknown1 64 unsigned
Unknown2 64 unsigned
Unknown3 18 unsigned
Unknown4 count 3 unsigned
Unknown4 array, counted by Unknown4 count
Unknown4[] 32 unsigned

0x056D Server056D

Opcode Direction Verified to
0x056D server to client unverified
Field Bits Encoding
Unknown0 64 unsigned
Unknown1 32 unsigned
Unknown2 count 4 unsigned
Unknown2 array, counted by Unknown2 count
Unknown2[] 32 unsigned

0x0694 Server0694

Opcode Direction Verified to
0x0694 server to client unverified
Field Bits Encoding
Unknown0 64 unsigned
Unknown1 32 unsigned
Unknown2 32 unsigned
Unknown3 32 unsigned

0x071C Message071C

Opcode Direction Verified to
0x071C server to client unverified
Field Bits Encoding
Unknown0 the fields below
Unknown0.Unknown0 14 unsigned
Unknown0.Unknown1 64 unsigned
Unknown1 32 unsigned
Unknown2 32 unsigned
Unknown3 32 unsigned

Client to server

0x03E0 Client03E0

Opcode Direction Verified to
0x03E0 client to server unverified
Field Bits Encoding
Unknown0 varies wide string

0x03E8 Client03E8

Opcode Direction Verified to
0x03E8 client to server unverified
Field Bits Encoding
(none) 0

0x03F0 Client03F0

Opcode Direction Verified to
0x03F0 client to server unverified
Field Bits Encoding
(none) 0

0x0411 Client0411

Opcode Direction Verified to
0x0411 client to server unverified
Field Bits Encoding
Unknown0 64 unsigned

0x0412 Client0412

Opcode Direction Verified to
0x0412 client to server unverified
Field Bits Encoding
Unknown0 64 unsigned
Unknown1 2 unsigned

0x0439 Client0439

Opcode Direction Verified to
0x0439 client to server unverified
Field Bits Encoding
Unknown0 64 unsigned
Unknown1 14 unsigned
Unknown2 64 unsigned

0x043B Client043B

Opcode Direction Verified to
0x043B client to server unverified
Field Bits Encoding
Unknown0 64 unsigned

0x043E Client043E

Opcode Direction Verified to
0x043E client to server unverified
Field Bits Encoding
Unknown0 64 unsigned
Unknown1 14 unsigned
Unknown2 64 unsigned

0x0459 Client0459

Opcode Direction Verified to
0x0459 client to server unverified
Field Bits Encoding
Unknown0 14 unsigned
Unknown1 64 unsigned
Unknown2 32 unsigned
Unknown3 32 unsigned
Unknown4 32 unsigned

0x045C Client045C

Opcode Direction Verified to
0x045C client to server unverified
Field Bits Encoding
Unknown0 64 unsigned
Unknown1 14 unsigned
Unknown2 64 unsigned
Unknown3 32 unsigned

0x0460 Client0460

Opcode Direction Verified to
0x0460 client to server unverified
Field Bits Encoding
Unknown0 15 unsigned
Unknown1 3 unsigned
Unknown2 32 unsigned
Unknown3 32 unsigned

0x0463 Client0463

Opcode Direction Verified to
0x0463 client to server unverified
Field Bits Encoding
Unknown0 64 unsigned
Unknown1 14 unsigned
Unknown2 64 unsigned
Unknown3 14 unsigned
Unknown4 64 unsigned

0x04ED Client04ED

Opcode Direction Verified to
0x04ED client to server unverified
Field Bits Encoding
Unknown0 2 unsigned
Unknown1 varies wide string

0x0504 Client0504

Opcode Direction Verified to
0x0504 client to server unverified
Field Bits Encoding
Unknown0 64 unsigned
Unknown1 14 unsigned
Unknown2 64 unsigned

0x0512 Client0512

Opcode Direction Verified to
0x0512 client to server unverified
Field Bits Encoding
Unknown0 14 unsigned
Unknown1 64 unsigned
Unknown2 varies wide string

0x0522 Client0522

Opcode Direction Verified to
0x0522 client to server unverified
Field Bits Encoding
Unknown0 14 unsigned

0x0523 Client0523

Opcode Direction Verified to
0x0523 client to server unverified
Field Bits Encoding
Unknown0 14 unsigned
Unknown1 64 unsigned

0x0552 Client0552

Opcode Direction Verified to
0x0552 client to server unverified
Field Bits Encoding
Unknown0 32 unsigned

0x056E Client056E

Opcode Direction Verified to
0x056E client to server unverified
Field Bits Encoding
(none) 0

0x0693 Client0693

Opcode Direction Verified to
0x0693 client to server unverified
Field Bits Encoding
(none) 0

0x071B Client071B

Opcode Direction Verified to
0x071B client to server unverified
Field Bits Encoding
Unknown0 the fields below
Unknown0.Unknown0 14 unsigned
Unknown0.Unknown1 64 unsigned
Unknown1 32 unsigned
Unknown2 32 unsigned
Unknown3 32 unsigned

Both ways

0x0550 Message0550

Opcode Direction Verified to
0x0550 both ways unverified
Field Bits Encoding
Unknown0 32 unsigned

Where the code lives

Piece Path
Message declarations Source/NexusTomorrow.Network.World/Message/Model/Utility/
This page's generator Tools/NexusTomorrow.ProtocolReference/

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