SmartSteamEmu.ini: Open this file and ensure the following parameters are set:
[Settings]
AppId = 108600
PersonaName = Player_YourName
Language = english
[SteamNetworking]
Enable = 1
AllowConnections = 1
Note: Cracked clients can only connect to other cracked servers (unless using a Steamworks fix that mimics Steam IDs).
Limitations: Camera follows player 1. All players share the same screen radius. No voice chat, but great for same-room co-op.
Dedicated Server (for friends over internet):
Even with perfect setup, things go wrong. Here is the fix for the top 5 errors.
| Error Message | Likely Cause | Fix |
| :--- | :--- | :--- |
| “No Steam user ID provided” | Crack missing Goldberg/Steam files. | Replace steam_api64.dll with a proper emulator. Re-download crack only. |
| “Connection failed – Server is not responding” | Firewall blocking UDP 16261. | Host must allow ProjectZomboid64.exe in Windows Firewall → Inbound Rules. |
| “Username is already in use” | Two players have the same fake Steam ID. | In the game folder, open steam_settings → configs.user.ini. Change AccountName= to a unique name per player. |
| “Server requires password” | servertest.ini has Open=false. | Set Open=true or distribute the password. |
| “Infinite loading / stuck at ‘Requesting map chunk’” | Host’s internet upload speed too low or mod conflict. | Disable all mods temporarily. Host must have at least 10 Mbps upload for 4 players. |
While this paper focuses on the how, it is necessary to address the should.
You are playing a game that continuously updates. Here is what you lose:
Playing multiplayer on a cracked version is not equivalent to the legitimate experience. Key limitations include: