How To Play Multiplayer In Crack Installed Project Zomboid [2025]

Project Zomboid is the gold standard for isometric zombie survival. Its hardest difficulty isn't the sprinters or the cold—it’s surviving alone. The game is designed for co-op. But what if you want to play with friends who haven't purchased the game, or you are using a cracked version for testing purposes?

Because the game uses Steam’s networking (Steamworks P2P) and a central authentication server, playing multiplayer on a cracked .exe is not straightforward. You cannot simply click "Invite Friend." You must bypass Steam authentication entirely.

Here is the step-by-step method to play Project Zomboid multiplayer using a cracked copy, utilizing VPN software and direct IP connections.

Since you don't have access to Steam servers, you must simulate being in the same room as your friends. how to play multiplayer in crack installed project zomboid

There are two main ways to do this: LAN (Local Area Network) or Virtual LAN.

If you are in the same house, you don't need extra software.

Legitimate Project Zomboid uses:

Cracked versions remove the authentication check but break the relay system. Therefore, you must simulate a Local Area Network (LAN) over the internet using a VPN (like Radmin VPN, Hamachi, or ZeroTier).

Most cracked releases include a StartServer64.bat or ProjectZomboid64_server.exe in the game folder.

If everything works, you will see the server, a loading bar, and you will spawn in the world. Project Zomboid is the gold standard for isometric

Most cracked releases use a Steam emulator that creates a steam_api64.dll (or similar) and a configuration file (e.g., steam_settings folder, SmartSteamEmu.ini, or Goldberg settings).
Check your game folder – if you see SmartSteamEmu.ini or a steam_settings directory, follow the appropriate method below.

Important: Go to the main menu → click “About” (bottom right). All players must see the exact same build number (e.g., 41.78.16). Mismatched versions will cause connection failures.