Networking changes in Project Zomboid
- 9documented changes
- 7patches
- 7fixes
Every documented change to Networking
9 changes across 7 patches, newest first
42.18.0 (Build 42 Unstable) Monday, 11 May 2026
- FIXNetworking
Fixed: a player state desync issue where the walk animation plays before turning 180 degrees
In multiplayer, a player who turns around no longer plays the walk animation before the turn finishes, so other players' movement looks right.
Fixed a player state desync issue where the walk animation plays before turning 180 degrees
Official source
42.15.0 (Build 42 Unstable) Monday, 9 March 2026
- FIXNetworking
Fixed: desync with incorrect position of the remote player's character on Z coordinate
Other players in multiplayer now show up on the correct floor level.
Fixed desync with incorrect position of the remote player's character on Z coordinate
Official source - FIXNetworking
Fixed: desync with clothing
Outfit changes now show up correctly on multiplayer players who are in other parts of the map.
Fixed desync with clothing.
- Fixed desync with clothing. Outfits weren't updating on players in different map chunks
42.13.1 (Build 42 Unstable) Thursday, 18 December 2025
- FIXNetworking
Fixed: a desync issue when a remote player reconnects to the server
A player who reconnects to the server now shows the weapon in hand to everyone else, instead of appearing without it.
Fixed a desync issue when a remote player reconnects to the server, the weapon in their hands will not be displayed.
Official source
42.8.1 (Build 42 Unstable) Tuesday, 20 May 2025
- FIXNetworking
Fixed: only 1 pumpkin seed required to fill an empty packet
Filling an empty seed packet with pumpkin seeds now takes the proper number of seeds instead of just one.
Fixed only 1 pumpkin seed required to fill an empty packet.
Official source
41.77 (Build 41) Tuesday, 27 September 2022
- FIXNetworking
Fixed: infinite connection attempt to non-steam server when it's not up
Fixed infinite connection attempt to non-steam server when it's not up.
Official source - CHANGENetworking
Improved client connection
Servers now have a second port for direct connections. Clients try it first and fall back to Steam if it fails, and they show a warning when that port is closed.
Improved client connection.
- Improved client connection. Important for server providers : Servers now have two ports for clients to connect to. The game port (UDP 16261 by default) is used to handle Steam queries. The additional port (UDP 16262 by default) is used to handle the direct connection. These ports can be configured through the server options. Clients will first try to use a direct connection. If direct connection fails, clients will try to connect via Steam. The non-Steam version works as usual. UPnP rules were changed accordingly (UPnP is used in cases to prevent manual port-forwarding). The client will show the warning message "WARNING: SERVER HAS PORT %1 CLOSED. PERFORMANCE MAY BE SEVERELY AFFECTED" if the client can't connect through direct connection.
41.76 (Build 41) Thursday, 8 September 2022
- CHANGENetworking
Improved Steam Networking API implementation
Multiplayer's Steam networking has been improved.
Improved Steam Networking API implementation.
Official source
41.66 (Build 41) Friday, 25 February 2022
- FIXNetworking
Fixed: desync when a player heals via "godmode" at the same time as a character dies
Fixed desync when a player heals via "godmode" at the same time as a character dies.
Official source